Commit Graph
84 Commits
Author SHA1 Message Date
Colby McHenryandClaude Fable 5 b1f40c57dd feat(steps): cross-tier channels — a client's fetch onto its own route, queue jobs onto consumers, bus and socket events onto handlers
- resolution/tier-synthesizer.ts: http-client (literal fetch/axios/ky/got/$fetch paths, axios.create baseURL instances, template holes as :params, base-URL holes by a two-segment tail; unique match only), queue-job (BullMQ/Bull add ↔ @Process/@Processor, WorkerHost process, new Worker, queue.process), event-bus (EventEmitter2 emit ↔ @OnEvent with globs; socket emit ↔ @SubscribeMessage / socket.on both ways with tier); channel, tier, callee, registeredAt on every edge; generic transport events never pair; test and generated files never sources; registered before the emitter pass
- steps.ts: crossing() reads tier/channel before languages; an endpoint reached across a tier is a bridge box and a boundary like a screen (through=1 enters it); a channel's call is not also an effect; sites read as written; a Next 'use server' action is a crossing by its directive (when.ts directive); a function-valued constant handler (asyncHandler(...)) is a route root and borrows the file-scope calls and refs within its lines
- express.ts: app.use('/prefix', router) mounts composed onto route names in postExtract (nested, by import or require); chained router.route('/x').get(h).put(h2) extracted, across lines
- frameworks/package-deps.ts: dependencies read from workspace package.json files too (Express, React, Expo Router, NestJS detect)
- routing manifest names constant handlers; e2e/ is a test directory; explore's Flow section labels the new channels
- tests: ui-steps-cross-tier (monorepo fixture: Next client + Express/Nest API), servers test updated for the queue landing
- docs: CHANGELOG, spec §3.13 cross-tier paragraph, CLAUDE.md, callback-edge-synthesis.md, plan P3 built

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01REFyW9hmNrxhwN5wxRoAkC
2026-08-28 14:31:01 -05:00
Colby McHenryandClaude Opus 5 56dfdb0655 feat(ui): dead code and islands — what nothing reaches, and everything that could still reach it (CG-59)
A Dead code screen and a mark on the Map, both drawn from one derivation in
src/graph/dead-code.ts so a second surface can never disagree with the first.

The SQL half is four lines — no incoming edge but `contains`. It returns ~2 500
candidates on this repository and the shipped list is 20; everything in between
is the feature. A candidate is dropped the moment there is any reason to believe
something outside the graph reaches it: exported symbols and header
declarations, test and generated files, abstract and interface members, anything
carrying a `decorates` edge, overrides of an ancestor's member, names the
language calls by itself, vendored directories, files nothing in the index
reaches (those are islands, and the Map says so instead), names the resolver
failed to resolve somewhere, and names shared with a symbol that IS referenced —
the mis-resolution that leaves a used method with a self-edge and its twin with
nothing. The last rule is the only one that is not a graph query: before a claim
is made, the declaring file and every file that reaches it are read and the
identifier counted, which is what catches the references the extractor never
recorded (`this.handleMessage.bind(this)`, a call inside an object literal, a
shorthand property).

Every subtraction is counted and printed under the list with the scale it came
from, and the caveat line above it never collapses: the claim is "no static
reference in the index", not "unused".

On the Map a module nothing depends on keeps its stroke and says so in its count
line, and tool-generated files and modules recede to ink-4 there, in the map's
file list, in search results and on the file screen.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 07:57:00 -05:00
Colby McHenryandClaude Opus 5 94f4e287e6 feat(ui): entry points — routes, executable files and tests as flow starting points (CG-54)
`#/entry` answers "where does anything start" at full length, and turns any row
that names a symbol into a flow.

Server. `/api/entrypoints` gains `frameworks` (from `getDetectedFrameworks`), a
`tests` list, a `routes` limit of its own, and a cache keyed on the index build
— nothing here is read from disk, so unlike `/api/source` a cached answer cannot
be stale about drift. `routes.items` is now a `WireList` like every other list on
the payload.

Routes carry where the URL is REGISTERED as well as where it is served:
`getRoutingManifest` selects the route node's id, file and line, and
`buildRoutes` splits the verb off the name against a fixed list (never "the
first word", which would take the head off a file-routed `/blog/[slug]`). All
four payroll-go routes register in one router file and three are served from
another — group by the handler file and one router becomes two groups plus an
orphan.

`isTestFile` is split into `isTestPath` (test filename and directory
conventions) + the non-production catch-all, byte-identical at every existing
call site. The Tests list uses the narrow half: an example, a benchmark or a
fixture is off-target for ranking but is not a test, and a heading that says
"Tests" must not quietly count them. Tests rank by REACH — distinct other files
touched — because Go, Rust and Java put test work inside functions where a
module-level-calls ranking sees nothing. Two read-only engine queries make that
affordable: `getFileReachCounts` (the mirror of `getFileDependentCounts`, driven
from `nodes` by path so the cost follows the files asked about rather than the
edge table) and `getFileNodes`.

Viewer. `ui/src/lib/entry-model.ts` folds the four lists into file groups —
pure, and `panel.rows` stays exactly the sections it draws. `EntryView` +
`EntrySection` render them with the caller rail's `.filegroup` / `.row` shapes
rather than a second visual language for the same idea. A row that names a
callable symbol carries a `Flow ›` chip; the other end is typed or picked with
`→ here` on another row. File and test rows carry none: `/api/flow` searches by
name, and a file has none the path finder can look up.

A project with fewer than three resolvable routes gets no Routes heading at all,
not an empty one. Typing into the search box now also returns matching entry
points under their own heading below the symbol matches, so a URL comes back
with its handler attached; rows already in the results are dropped.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 05:20:15 -05:00
Colby McHenry ecd6e1cd15 feat(ui): live refresh and drift banners — the viewer keeps up with the project (CG-53)
`GET /api/events` is a server-sent-event stream the viewer holds open for the
life of the page. Two signals, two things the browser could not know:

  changed  source files touched on disk, before any sync — the drift banner
  index    the graph moved, naming what the sync re-indexed — the live refresh

The server WATCHES and never syncs: the project tree through the engine's own
FileWatcher with a notify-only syncFn, the index through one non-recursive
fs.watch on the data directory settled at 400 ms. Both start with the first
subscriber and stop with the last, so a viewer nobody has open costs no watch
descriptors. Nothing polls, on either side.

Drift is now parity with codegraph_node (#1474) rather than an absence.
`/api/source?ondrift=current` serves a drifted file's CURRENT bytes flagged
`showing: 'current'`, and the three screens that can say so switch off
everything anchored to the old line numbering — gutter ports, call-site links,
call arcs, the callee rail's anchoring — while keeping the source. The banner is
paper-2 with a hairline rule, never amber: amber belongs to the untested badge.

Also fixes a stale read this exposed. A long-lived reader holds an LRU of nodes
by id that only its own writes invalidate, so `/api/node/<id>` kept answering
with a symbol another process's sync had deleted while `/api/search` beside it
said it was gone. GraphSession now drops the read caches when the database (or
its WAL) has been written, and the Symbol view follows a symbol whose id changed
because an edit above it moved its start line, carrying the trail across.

Measured on a live viewer: banner 360 ms after a save, toast 440 ms after
`codegraph sync` returns, 0 requests in 4 idle seconds, and the client gives up
reconnecting after ~90 s with "Not live" rather than hammering a dead port.
2026-08-27 04:28:56 -05:00
Colby McHenryandClaude Opus 5 bd99c5e99a feat(ui): the whole file — full source with gutter ports and intra-file call arcs (CG-52)
The File view gains a Source tab: the file itself, top to bottom, with the
Symbol view's line grid, gutter ports and call-site links, a line-anchored
callee rail, and — in the left margin — an arc for every call that stays inside
the file, drawn from the calling line to the callee's definition line.

The arcs are the point. Source order is already a layout, chosen by whoever
wrote the file, so a file's internal call structure can be drawn with no
algorithm placing anything. Crabviz's idea, in the one place it is legible.

Everything is arithmetic, not measurement. The Symbol view queries the laid-out
DOM to place a callee row beside its line; a 6 820-line file cannot afford that.
Here a line is exactly 20px at `10 + (n - 1) x 20`, so ~90 line elements exist at
a time and the arcs, ports, rail rows and connectors are all functions of a line
number. `src/mcp/tools.ts` scrolls at a 16.6ms median frame.

- `GET /api/filecode/<path>` — outline, one call group per (caller, callee) PAIR
  with its call-site lines, unresolved references, and the file's length. The
  source is NOT in it: it pages through `/api/source` 800 lines at a time with a
  discarded 150-line lead-in, so a page starting inside a block comment does not
  render prose as code, and so the ports and arcs are complete from the first
  frame while the text fills in behind them.
- `intraFileCalls` is counted over the groups actually returned, so the header
  and the picture under it cannot disagree once a cap bites.
- Above 40 arcs the diagram narrows to the symbol under the pointer (or the one
  the scroll position is inside) and the header states the total. Accent is for
  the pointer only, never for the filter.
- Sticky outline rail at >= 1400px, following the reader down the file.
- `QueryBuilder.getUnresolvedReferencesInFile` — one indexed lookup instead of
  one per symbol; `buildOutlineEntries` lifted out of `/api/file` so both
  readings of a file draw the same rows.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 03:47:42 -05:00
Colby McHenryandClaude Opus 5 6d0f60f32c feat(ui): the Map — the repository at module granularity, layered from the graph (CG-49)
`GET /api/map` rolls the whole edge table up to module granularity in one
`GROUP BY`, and the Map tab draws it: one box per directory, dependencies
pointing down, nothing placed by hand.

Two decisions carry the screen.

The vertical order rests on each link's `declared` weight — the edges resolved
through an import, a qualified name, an inheritance clause or a typed receiver —
not on its raw count. Bare name matching resolves `run`, `push` and `finish`
across unrelated directories, and layering on raw counts put `src/db` directly
under `src/bin` on this repository's own index. On declared edges the same data
reproduces the pipeline CLAUDE.md describes, with a third of the mutual pairs.
When too few links carry a declared edge to describe a project, the layout falls
back to raw counts and the side panel says so.

And the aggregation is a single scan. Grouping by the symbol names as well as
the modules costs nothing extra — the join is what is expensive — so one query
yields both the link weights and the tooltip's symbol pairs. Measured against
this index inflated to 800k edges: 1.28s for one scan against 1.89s for two,
which is the difference between meeting and missing the cold budget on a
ten-thousand-file repository. Cached answers come back in ~3ms.

Nothing is dropped silently: thin links are hidden until a module they touch is
selected and counted in the panel, uncertain references are excluded from every
number on screen and the total is printed, and mutual dependencies, module loops
and file-level circular imports are listed rather than straightened away. An
edge that still points up after layering is drawn dashed on selection instead of
being reversed or removed.

The layout — cycle-breaking, longest-path layering, barycenter ordering, ports —
is a pure function of the payload in `ui/src/lib/map-model.ts`, so the tests
toggle and the selection cost no round-trip and the same project always draws
the same picture. Svelte Flow supplies pan, zoom and fit; never a layout.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 02:38:24 -05:00
Colby McHenryandClaude Opus 5 87afc50e76 feat(ui): the search palette, entry points and a trail that survives the URL (CG-45)
Search: `/` or ⌘K focuses the box; results arrive grouped by kind with their
glyph, signature and file:line, ↑/↓/Enter walk them, Esc dismisses. A group
appears where its best result did, so flattening the groups reproduces the
ranking the keyboard walks — the panel's flat item list IS that concatenation.
A flow question ("how does X reach Y", "X -> Y") is recognised and searches
both endpoints with a note, rather than offering a row that would land on the
phase-2 Flow view.

Entry points answer "where do I start" on the empty screen and in the resting
palette, all derived from the graph: routes, files that run something at module
level (the engine records a top-level statement as an edge out of the file node,
which is what makes src/bin/codegraph.ts the root of the CLI flow — ranked by
calls x the files they reach, so a registration table calling into itself does
not outrank the CLI), and the most depended-on symbols. Tests are excluded from
both derived lists.

Trail: hops record the direction they were walked (→ into a call, ← up to a
caller), clicking one truncates back to it, Clear keeps the place instead of
throwing it away, and the whole walk travels in the URL. A shared or reloaded
trail arrives as ids, so hops learn their names back through a new batch
endpoint and a session name cache — without it, walking back across a
truncation redrew earlier hops as raw hashes. "Read as flow" stays hidden until
there is a Flow view to send it to.

New endpoints: /api/entrypoints and /api/nodes. New engine reads:
getTopCallingFiles, getFileDependentCounts.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 00:54:18 -05:00
Colby McHenryandClaude Opus 5 5cecaabfc2 feat(ui): the Symbol view — callers, gutter-ported source, line-anchored callee rail (CG-44)
The core screen of `codegraph ui`: who calls a symbol on the left, its
verbatim body in the middle with a port on every line that has an outgoing
edge, and what it calls on the right — each callee row placed beside the line
that makes the call, with a hairline connector between them.

The callee rail is the part that is not a list. A row wants to sit at the
centre of its first call-site line and is pushed down only when that would
collide with the row above, so the rail keeps source order; the connector
still runs to the real line, so the displacement is visible rather than
silent. Positions come from measuring the laid-out DOM, so they are
recomputed on resize, on font load and whenever a fold opens.

Honesty is carried in the drawing, not in a footnote: a filled port means the
resolver matched something on that line and a hollow one means it only
guessed; uncertain connectors are dashed and their targets fold away behind
their count; synthesized edges are dashed differently and tagged with the
mechanism that made them; references that leave the index are text with a
soft underline rather than links to nowhere, and they are counted. Long
bodies keep their head plus a window round every call site — windowed on
graph edges only, since a function calling `console.log` two hundred times
would otherwise window round every line and buy nothing. Containers over 80
lines show a members outline with per-member fan-in/fan-out instead of 700
lines of braces.

Two small additions to the read-only API this needed:

* `/api/node` gives every outline member its own fanIn/fanOut (two batched
  queries for the whole outline). A class's own fan-out is nearly always
  zero because its methods do the calling, so without these the outline
  cannot say which member carries weight.
* `/api/stats` gains `blastScale` — the denominator the blast bar is drawn
  against, so one symbol's radius reads as wide or narrow *for this repo*.
  It is measured across the index's 24 most-depended-on symbols (found with
  a new `getTopDependedOn`, distinct dependents rather than edges), memoised
  against the index stamp, and reported as sampled; a symbol wider than the
  sample becomes the scale instead of overflowing the track.

Verified against a real index in a real browser: parity with the prototype on
`CodeGraph.sync` (259 lines, 27 callee rows, no overlaps), `GraphTraverser`
(20-member outline), a 773-line function (26 windows, 78 connectors), light
and dark, hover linking in both directions, keyboard-only navigation, and
reflow on resize and on fold toggles.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 00:09:47 -05:00
Colby McHenryandClaude Opus 5 951ba3678a feat(ui): read-only JSON API over the index for the viewer (CG-42)
Six endpoints under `/api/`, one per screen, each answering in a single
round-trip in the spirit of `codegraph_explore` — the viewer should never
have to ask a follow-up question to finish drawing a pane:

    /api/stats                     index state, graph counts, frameworks
    /api/search?q=                 ranked, kind-grouped symbol search
    /api/node/<id>                 rails, members, tests, blast radius
    /api/source?file=&from=&to=    verbatim source + a drift verdict
    /api/file/<path>               outline and import rails
    /api/routes                    URL -> handler, when there is one

It is a reader of the existing schema: no extraction or resolution changes.
It mounts on the `api` seam `startUiServer` already exposed, so it sits
behind the CG-41 loopback boundary — Host allowlist, no CORS headers,
GET/HEAD only — and every read out of the repository goes through
`resolveProjectFile`, ahead of the index lookup so a traversal is refused
as a traversal rather than reported as "not indexed".

Three properties the endpoints are built around:

- No N+1. The engine's busiest symbol has 545 incoming edges; resolving
  those one `getNode` at a time is 545 queries. Every edge list is
  resolved with one batched lookup, which needed four additive read-only
  query methods (`getNodesByIds`/`getFanIn`/`getFanOut` on `CodeGraph`,
  plus batched outgoing/incoming edge fetches and unresolved-reference
  reads). `/api/node` on `LRUCache.get` answers in ~10 ms.

- Capped lists, honest totals. 545 callers cannot all be rows, so caller
  groups cap at 300 — but `total` is always the real number, and the
  ordering puts the useful end first (same file, then production code,
  then tests). Every count in the payload is the length of a list the
  same payload returns, so a badge and its rail cannot disagree.

- Nothing overclaims. Source that drifted on disk since the last index
  sync is omitted rather than sliced at line ranges that may now point at
  a different symbol; calls that leave the index are counted instead of
  silently shortening the callee rail; imports that never resolved are
  named; and a test-coverage claim reports whether its search actually
  finished. `/api/routes` says a project simply is not routed, and
  refuses a `limit` below three because the engine's manifest would
  answer that question wrongly.

Tests: 45 against a real indexed fixture over a real loopback server,
covering every endpoint's shape, the drift verdict in all three places it
surfaces, search ranking and the filter grammar, the refusals, and the
capping/latency behaviour at 500 callers. The issue's own acceptance case
— `lru-cache.ts` `get` under 100 ms — runs against this repo's index when
one is present.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-26 23:33:30 -05:00
Colby MchenryandGitHub 41c10750e0 fix(erlang): give same-name different-arity functions separate arity-qualified nodes (#1610) (#1615)
Fixes #1610. Also fixes #1358 (the `<<binary>>` arity miscount in behaviour dispatch, reported separately and hit by the same code path).

## Problem

Arity is part of an Erlang function's identity — `f/1` and `f/2` are unrelated top-level definitions — but the extractor merged consecutive same-name `fun_decl`s regardless of arity. Reproduced on main exactly as reported:

- adjacent `f(X) -> …. f(X, Y) -> ….` → **one** node spanning both, with the first definition's signature;
- interleaved `f/1, g/0, f/2` → two nodes with **identical** `qualified_name`;
- `cowboy_req`'s `header(Name, Req) -> header(Name, Req, undefined).` → a **self-loop** `header → header`, with the `-spec` for `/3` swallowed by the merged span;
- `-export([f/1])` marked every arity exported.

## Fix

- **One node per (name, arity).** Clauses of the same name+arity still merge (that part of the old behavior was correct); a different arity starts a new node. `qualifiedName` carries the canonical spelling — `mod::f/1` — while the node **name stays bare** so search and bare-name matching are unchanged.
- **`-export` and `-spec` are per-arity.** `-export([f/1])` exports exactly `f/1`; a spec sitting between two arities attaches to the arity its signature names.
- **Refs carry the call-site arity** wherever it's statically known: local `f/1`, remote `mod::f/2`, `fun f/1` / `fun mod:f/1` values, `gen_server` dispatch (`handle_call/3`, `handle_cast/2`), and spawn/apply MFA lists (`spawn_link(?MODULE, work, [A, B])` → `work/2`).
- **The matcher resolves only to the named arity** — same file first (a local call targets its own module) — and when no definition of that arity exists it resolves to **nothing** rather than a sibling arity: silent beats wrong. An arity-less dynamic-MFA ref resolves only when the module defines exactly one arity of that name.
- **Behaviour dispatch** selects the implementer node of the site's arity, and the arity counter now skips `<<1,2,3>>` binary-literal commas per its own docstring (#1358) — `Mod:decode(<<1,2,3>>, Opts)` counts 2, not 4.
- **`codegraph_explore` / `codegraph_node`** accept the written `mod:fn/3` spelling against the new arity-qualified names (the issue's measured `cowboy_stream_h:request_process/3` shape).

## Validation

Minimal fixtures (all three reported shapes) now index as `gap::f/1` + `gap::f/2`, distinct `inter::f/1`/`inter::f/2`, and a real `deleg::header/2 → deleg::header/3` edge with no self-loop.

Cowboy (fresh `--depth 1` clone, this build vs unmodified main build):

| | main | this PR |
|---|---|---|
| nodes | 3,668 | 3,748 (+80 — the arity splits; no explosion) |
| erlang function nodes | 2,850 | 2,930 |
| behaviour dispatch edges | 38 | **44** |
| `cowboy_req::header` | one node, span 420–425, /3's spec lost | `header/2` (420–421, its own spec) + `header/3` (424–425, its spec) |
| delegation | self-loop | `header/2 → header/3` |

`calls` edges drop 6,059 → 5,656: a sample of every removed pair shows the false-positive class the issue predicted — out-of-repo/BIF calls (`length/1`, `error/1`, `quicer:*`) that previously name-matched onto unrelated same-named in-repo functions now stay unresolved.

Tests: new arity coverage in extraction + a new arity-resolution integration suite + a #1358 binary-literal behaviour test; updated existing Erlang expectations to the arity-carrying spellings. Full suite: **3,018 passed, 0 failed**.

No migration: an existing Erlang index picks the new shape up on its next re-index (`codegraph sync` / re-`init`).

Erlang is wasm-only (not in the native kernel), so there is no kernel-parity surface.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

https://claude.ai/code/session_01LxZj6W6Y1SHXwvpT3uwJpK
2026-08-26 10:39:15 -05:00
1d9de88ef1 feat(config): add codegraph.json "deprioritize" for ranking-only path down-weighting (#982) (#1463)
* feat(config): add codegraph.json "deprioritize" for ranking-only path down-weighting

matchesNonProductionDir hardcodes example/sample/fixture/benchmark/demo,
so a peripheral tree only the project knows about — optional-skills/,
scripts/ — gets no de-prioritization. When helpers there carry generic
symbol names, an exact name match hands them a large bonus and they crowd
out the product code that answers the query (#982).

deprioritize is the RANKING counterpart to exclude: those paths stay
indexed and findable, they just stop outranking first-party code. It is
deliberately distinct from the corpus-frequency discount, which keys on a
name being common and is near-inert on #982's own repro where only two
symbols are named usage.

The -15 path penalty alone is not enough, and measuring showed why: on
that repro a usage() helper sits at 74.8 against 51.2 for the top product
symbol, so -15 lands at 59.8 and still leads. The path penalty is additive
and the name bonus it must counter is additive and larger. A de-prioritized
path is saying its symbol NAMES are not the answer, so the exact-name bonus
is damped to 0.25x there as well — damped, not zeroed, so the tree still
ranks when it genuinely is what you asked for.

Refs #982

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SKXAJMrVrdHS5Uco6ABtky

* fix(config): read deprioritize lazily and apply it in explore too

Review of the first cut found two real defects.

The matcher was built once in wireLayers(), which runs only from the
constructor and from reopenIfReplaced(). The MCP server keeps one
CodeGraph per project root alive for its whole lifetime, so editing
codegraph.json appeared to do nothing until the process restarted --
exclude and include do not behave that way. The predicate now reads
loadDeprioritizePatterns() per call (mtime-cached, one stat) and memoizes
the compiled matcher on the pattern array's identity. A regression test
writes the config after opening the project and fails on the old code.

Explore passed no matcher to scorePathRelevance at either of its two call
sites, so the setting only half-applied -- and #982's reproduction rows
B, C and D are all codegraph explore, which made this the surface the
issue actually reports on. Both sites now pass it.

Explore's hard early-continue filters and its non-production budget cap
are deliberately NOT joined: those REMOVE content, and deprioritize is a
ranking lever by definition. README narrowed accordingly -- it previously
claimed this extends the built-in list, which overstated it.

Also from review: scorePathRelevance takes a boolean rather than a
predicate (the caller already evaluated it, and it was being invoked
twice per result), the predicate body is exception-guarded so a bad path
can never take a search down, the misplaced const moved out from between
imports, two vacuous test assertions tightened, and tests added for the
single-penalty invariant, the deliberate isTestQuery asymmetry, and a
query that genuinely targets the de-prioritized tree.

Refs #982

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SKXAJMrVrdHS5Uco6ABtky

* fix(search): derive the deprioritize name-bonus damping instead of picking it (#982)

The 0.25 scale was a guess. On a 62k-node django index it measurably breaks
the "discount, don't erase" rule the lever is built on: exact-name queries for
symbols that live only in the de-prioritized tree (child, parent, method) fall
behind mere prefix matches (children, all_parents, method_decorator).

The prefix arm of nameMatchBonus tops out below 40, and a de-prioritized node
also takes the -15 path penalty, so 80 * SCALE - 15 > 40 is the bound that
keeps a damped exact match ahead of a prefix match at any corpus shape. 0.75
clears it; crowd-out removal is nearly identical to 0.5 (39 vs 40 of 88
peripheral top-10 slots cleared on django), so the deeper discount bought
almost nothing and cost the invariant.

Two tests pin the bound, including one that fails at the old 0.25.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-22 11:55:14 -05:00
9219967e43 perf(search): seek the name index for exact-name lookups (#1542)
`nodes` carries two name indexes and neither can serve
`WHERE name = ? COLLATE NOCASE`: `idx_nodes_name` is BINARY-collated, and
`idx_nodes_lower_name` is an expression index the planner only matches against
the same expression. All three whole-name lookups in the query layer were
written that way, so each one degraded to a full table scan
(`EXPLAIN QUERY PLAN` reports `SCAN nodes`).

The LIMITs on those queries do not rescue them. SQLite can only stop early once
it has produced LIMIT rows, and the two dominant cases never get there: a query
word that names no symbol at all, and a name with only a handful of definitions.
`searchNodes` runs its supplement once per query term; `findNodesByExactName`
runs two passes per symbol extracted from the question, and extraction is
generous, so a plainly-worded question issues a dozen full scans.

Written as `lower(name) = lower(?)` the same predicate seeks
`idx_nodes_lower_name`. Measured on four indexed repositories, baseline vs fix
in one process (the only difference being how the predicate is spelled):

  query "how does the retry backoff work"    findNodesByExactName   searchNodes
    gin         (2.5k nodes)                    1.27ms -> 0.18ms    3.1 -> 2.6ms
    Alamofire   (4.5k nodes)                    2.39ms -> 0.22ms    4.9 -> 4.0ms
    excalidraw  (11k nodes)                    10.54ms -> 0.17ms   10.4 -> 5.8ms
    django      (62k nodes)                    49.91ms -> 0.17ms   27.6 -> 4.9ms

The seek is flat across all four; the scan grows with the corpus. A one-word
query into `searchNodes` on django is unchanged (~20ms) because a single term's
scan is not what dominates it there.

Lowering the parameter in SQL rather than in JavaScript is deliberate. SQLite's
`lower()` and NOCASE both fold ASCII only, while JavaScript's `.toLowerCase()`
folds Unicode; comparing a JS-lowered parameter against `lower(name)` would
silently stop matching non-ASCII identifiers that NOCASE used to match.

`getNodesByLowerName` is spelled the same way for the same reason. It already
sought the index, but as a bare `lower(name) = ?` it took a pre-lowered
parameter on trust: any input carrying an uppercase letter returned nothing at
all. This is behaviour-neutral for its one caller — `matchFuzzy` lowers in
JavaScript before calling, and `lower()` over an already-lowered string is a
no-op, verified over the ASCII and non-ASCII cases alike. It closes the trap for
the next caller; the non-ASCII gap on the `matchFuzzy` side is a resolution
change and is deliberately not bundled here.

Result sets are unchanged, including which rows the LIMITs keep: entries under
one key in the expression index are ordered by rowid, the same order a table
scan produces. Verified over 14,400 lookups (top-400 names of the four
corpora, probed as stored / upper / lower, against all three call sites) with
zero differences, and end-to-end above with identical result ids.

Tests assert the planner's verdict rather than a wall-clock number, so they are
deterministic: they intercept the SQL each call site prepares and require an
index seek, with a guard that the lookups actually ran. Reverting any call site
turns them red.

Co-authored-by: Colby McHenry <me@colbymchenry.com>
2026-08-22 11:54:27 -05:00
81e1f4a92f fix: harden daemon and large-index recovery paths (#1562)
* fix: harden indexing recovery and daemon liveness

* test: cover daemon and recovery review gaps

* test: pin that a failure marker never blocks a later successful parse (#1557 retry-discard guard)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: danusha2345 <ewidusoc498@gmail.com>
Co-authored-by: Colby McHenry <me@colbymchenry.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-20 12:53:49 -05:00
d8f2eeaddf fix(db): loop-append dense unresolved-ref result rows; make stripped-salvage visible (#1558) (#1576)
Real-world validation of #1575 on indexes damaged by the released v1.5.0
binary surfaced both of these.

getUnresolvedReferencesByFiles chunked its INPUT under SQLite's parameter
limit but appended each chunk's RESULT rows with a spread — every row
becomes a call argument, so a dense recovery sync (the #1541 self-heal
re-indexing 919 files produced 234,440 rows) exceeded V8's argument limit
and killed resolution mid-sync with "Maximum call stack size exceeded",
leaving the graph 226k edges short until another sync resumed the orphans
(and that sweep resolves measurably worse than the batched path — see the
follow-up issue). The failed-ref retry loader had the identical pattern on
unbounded result rows. Both append with a loop now (#1558).

The #1575 stripped-salvage warning also never rendered: init's summary
prints only index_partial warnings and counts only hard errors, so a run
with salvaged files still read as fully clean — and with no hard errors the
detail wasn't written to errors.log either. Salvage entries now carry code
'salvaged_stripped', the summary prints a visible warning naming the files,
and errors.log is written for salvage-only runs.

Validated on real corpora with full-graph dumps: healthy-path inits stay
byte-identical to the pre-#1575 baseline (cpython Lib, Alamofire, with a
determinism control); a realistically-damaged index (41 wiped + 5 missing
files, damage generated by the released binary) heals in one plain sync to
identical per-file counts and an edge set within the normal incremental
residual; pathological mass damage (52% of the repo) completes without
crashing. New regression test reproduces the RangeError on the old code
with 200k pending refs.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-20 12:36:22 -05:00
Colby McHenry 2c708caf7c Merge branch 'main' into feature/CG-35 2026-08-06 21:17:56 -05:00
Colby McHenryandClaude Opus 5 9efae0f8f2 fix(explore): damp ambient declaration files on flow queries (CG-28)
A file that declares nothing but types and that nothing in the index depends
on — a hand-written ambient `.d.ts` of global shims, vendored typings, module
augmentation — cannot answer a flow question: no bodies, no call edges, no
behaviour, nothing typed by it. But the identifiers it declares are exactly the
generic ones a prose question uses (`Body`, `Message`, `ImageMetadata`,
`ReadableStream`), so on term overlap it out-scored the implementation. Measured
on the new fixture: rank #1 and 51% of delivered source, with the flow's own
entry file pushed out of the response entirely.

Measured first, per the issue: the Wrangler `worker-configuration.d.ts` that
opened this is already handled by CG-25's banner detection, worth 15-46 points
of envelope share across four flow queries. CG-25 credited; only the un-bannered
case needed anything.

`rankPenalty` now multiplies score and graph mass by 0.5 for such files, taken
as the STRONGER of it and the generated penalty rather than multiplied — one
property two signals see must not be charged twice. Detection is structural, not
by extension, and four conditions deep. Two of them were forced by measurement:
requiring every symbol to be type-level takes the corpus flag rate from 1-18%
(which swept in Kotlin sealed classes, Rust mod.rs re-exports and django's
locale tables) down to 0-4%; requiring that nothing depends on the file
separates an ambient shim from a working types module, and without it the rule
demoted displacement-ts's pipeline `types.ts` and broke the CG-31 gate.

A query that NAMES a declared type is exempt, so a question about a type still
reaches its declaration at full weight. Precise tokens only, so "…the file
body…" cannot exempt a `Body` interface it never meant to name; this needs its
own set because `namedSeedIds` is callable-only and a type never becomes one.

Regression evidence in docs/benchmarks/explore-declaration-only-cg28.md:
6-repo envelope sweep byte-identical against a clean baseline build, zero
ambient files reach the candidate set on VS Code across five queries, corpus
flag rate 0-0.74%, both allocation fixtures PASS, full suite 2,978 green.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-06 14:35:56 -05:00
Colby McHenryandClaude Opus 5 03893b0ab9 CG-33: converge incremental sync with a full rebuild
A live, auto-synced index did not converge to a clean rebuild of the same
tree — 4.3% of distinct edges wrong in both directions on this repo's own
index, overwhelmingly `calls`, which is what flow queries traverse and what
explore's file ranking weights. Silent: nothing warned, and the symptom read
as "codegraph isn't very good" rather than "this index needs rebuilding."

Two causes, and the fix needed both. Resolution binds a reference to one of
the same-named definitions PROJECT-WIDE, so a definition appearing or
vanishing changes the correct answer for references in files the sync never
touches — and those references resolved successfully once, which deletes
their unresolved_refs row, leaving nothing to revisit them with (#1240's
retry only revisits refs parked as failed). Separately, when nothing
disambiguated the candidates the winner came down to rowid, i.e. the order
files happened to be WRITTEN, which differs between a scan-order full index
and a sync that appends each file as it changes. That second one is why
re-resolution alone could not converge: re-resolving against the identical
graph still picked a different candidate.

So getNodesByName now orders by (file_path, start_line) — a property of the
code, not of the write order — and sync computes a definitionDelta and
re-opens the resolution edges whose answer it may have invalidated,
re-inserting each as the reference that created it for the orphan sweep to
bind against the post-sync graph.

The delta compares `file\0name` pairs per file rather than one name set over
the batch: a commit that adds `collect` to a new file while an unrelated
changed file already defines `collect` cancels out of a batch-wide set, and
that miss was the largest residual class in the first measurement.

Conservative where the failure modes are asymmetric — a wrong deletion is a
permanent edge loss, a missed rebind is only residual drift. Edges without a
refName stamp are never touched (nothing to restore them from), sources the
sync already re-extracted are skipped, and a per-name ceiling declines the
generic names. Edges are deleted before the sweep re-inserts, since
INSERT OR IGNORE against idx_edges_identity would otherwise keep both rows
when a reference rebinds elsewhere.

Replaying real commits of this repo through sync, then diffing against a
rebuild: 16 commits 48 -> 0; 80 commits 1,634 -> 361, with the actively
misleading direction (stale edges the index keeps asserting) 671 -> 2.
Index and sync wall-clock are unchanged; the ORDER BY costs 18% per uncached
name lookup, which never reaches wall-clock because the resolver memoizes it.

The 357-edge residual at 80 commits is one pre-existing class: refs to
generic names (`push`, `join`) parked above #1240's per-name retry ceiling,
which a rebuild resolves into cross-language garbage — a TS test file
"calling" an R method. Converging there would mean manufacturing wrong edges,
so it is left alone. And no drift metric in `codegraph status`: it cannot be
computed without the rebuild it would be recommending, and a proxy would fire
on that residual and train users to ignore it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-06 04:32:40 -05:00
Colby McHenryandClaude Opus 5 16e17495f4 feat(extraction): content-based generated-file detection (CG-5, #1500)
`isGeneratedFile` was path-only, but Go's own convention is a CONTENT
marker (`// Code generated by <tool>. DO NOT EDIT.`), not a filename one.
A Go monorepo with generated CRUD in ordinarily-named files sitting beside
hand-written use-cases was therefore invisible to every generated-file
down-rank in the codebase — that is #1500.

Measured on kubernetes/client-go (2,453 Go files): the canonical banner
appears in 2,001 of them, the path check flags 0, the new content check
flags exactly those 2,001 — no false positives, no misses.

Design: decide at INDEX time (content is already in memory for parsing),
persist on `files.generated`, read from the DB. Explore never reads file
headers per request.

- `hasGeneratedHeader(content)` recognizes the standard banners — Go's,
  protoc's, `@generated`, `<auto-generated>`, Thrift, OpenAPI Generator,
  FlatBuffers, bindgen, ANTLR. Precision-first and fenced three ways: an
  8KB/60-line header window, a comment-line requirement (leader or open
  block comment), and markers tight enough that prose can't trip them. A
  generator's own source, holding the banner as a string constant in its
  body, is not flagged; neither is this module itself (pinned by test).
- `isGeneratedFile(path)` is unchanged — cheap, sync, still the fallback.
- Schema v9 adds `files.generated` + a PARTIAL index. DDL only, no
  backfill: the flag derives from content the migration cannot see, so
  rows stay 0 until a re-index and every reader unions the flag with the
  path check — an un-migrated index keeps pre-#1500 behavior rather than
  regressing. Re-index required; noted in the CHANGELOG.
- `generatedPredicateFor(paths)` gives ranking a bounded probe + O(1)
  lookups. Bounded, not cached: no invalidation, so a ranking call can
  never serve a verdict the last sync already replaced. Wired into explore
  ranking, findSymbolMatches, findAllSymbols, search (MCP + CLI), the
  context formatter, and the dominant-file/route-file hygiene filters.

Cost (acceptance bar was no measurable index-time regression): a single
unanchored `/generat/i` test over the header rejects ~every hand-written
file before any line splitting. 4.6 µs/file on client-go (worst case —
82% generated). End-to-end `codegraph init` on client-go, n=3 alternating
arms: 5.73s median with detection vs 5.76s path-only baseline; the arms
cross over between runs, so the difference is inside run-to-run noise.

Scope note: generated status remains a stable TIEBREAK at equal score,
exactly where it was. Making it a strong negative signal is CG-10, which
this unblocks by making the signal correct and available.

Two pre-existing tests hard-coded schema version 8; both now track
CURRENT_SCHEMA_VERSION (or the migration table) so future migrations
don't require editing them.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-03 23:13:59 -05:00
02c0e2c935 fix(db): stop watchdog-killed sessions from leaking the SQLite WAL without bound (#1431) (#1490)
A SIGKILL'd process (the #850 liveness watchdog, OOM, a crash) leaves its WAL
on disk; the next session appends to the same file; and nothing ever truncated
it — PASSIVE checkpoints fold frames but keep the file at its high-water mark,
and the one shrinking path (a clean last-connection close) is exactly what a
killed-daemon world never takes. Observed at 25.6 GB on a 5.46 GB DB, growing
until the disk filled.

- journal_size_limit on every connection: resetting checkpoints now clip the
  WAL back to the cap instead of leaving it at its high-water mark.
- healOversizedWal() fired from every DatabaseConnection.open: off-thread
  PASSIVE fold + TRUNCATE when the leftover WAL exceeds the cap (64 MB,
  CODEGRAPH_WAL_HEAL_MB to override). Single-flight per connection with
  bounded retries — concurrent passes defeat each other (each checkpoint sees
  the other as a busy reader).
- Daemon/direct MCP watchdogs now pass progressPaths (DB + WAL), extending the
  #1231 slow-disk deferral to the long-lived server so a healthy daemon mid
  slow statement isn't SIGKILL'd — fewer kills, fewer leaked WALs.
- codegraph status shows WAL size (human + JSON) and warns when it dwarfs the
  DB; daemon.log lines and the watchdog kill notice now carry ISO timestamps
  so kills can be placed in time.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 21:38:38 -05:00
ce0ae30e09 perf(store): resolution ref-index window — kernel-scale resolution 423→276s, 8c envelope ≈11min (§4d round 2) (#1369)
Store-architecture arc round 2. The batched resolution loop reads
unresolved_refs ONLY through the status index + the PK keyset pager;
the other five ref indexes (from_node, name, file_path, from_name,
failed_tail) serve sync-time paths — yet every per-batch DELETE of
resolved refs maintained all of them, the biggest single main-thread
stage on the dubbo profile (deletes 1.2s of a 5.4s resolution phase)
and 50-81s at kernel scale.

beginBulkRefLoad/endBulkRefLoad on DatabaseConnection, threaded as
refIndexLoad hooks next to the existing bulkEdgeLoad pair with the
same minRefsForPool gate (small syncs never pay): drop the five for
the loop, rebuild each in one scan at the end — where the table holds
only the surviving FAILED refs (resolved rows are deleted by then),
so the recreate is near-free. Crash inside the window heals on the
next open (schema.sql re-applies CREATE INDEX IF NOT EXISTS).

Measured:
- dubbo: deletes 1.2 → 0.2s, marks 0.6 → 0.3s, recreate 219ms; wall
  ~8.5s flat — the freed main-lane time shifts into settle (the worker
  lane now binds the double-buffer at medium scale).
- Linux kernel 8c: resolution 423.4 → 275.9s (deletes 50-81 → 3.2s,
  backpressure 16.8 → 7.4s — fewer index writes mean less WAL and
  cheaper folds), ref recreate 10.3s. Envelope ≈ 11.0min, from the
  14.8min pre-arc best; <10min-on-8c now needs ~1 more minute.

Gates: dubbo/gson dumps byte-identical; linux counts exact
2,049,153/6,413,518 and dump sha 6dd1185b… reproduced (10,446,478
lines); full suite green ×2 (153 files / 2588 tests).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-19 23:24:14 -05:00
f6d8e8fdab perf(store): parse-lane index deferral — dubbo fresh init −19%, kernel-scale envelope best-ever 14.2min (§4d round 1) (#1368)
Store-architecture arc round 1 (the cbm speed bar: dubbo warm wall
10.7-11.2s vs their ~7.5). §4d measured dubbo's parse-loop as 94%
store-writer busy with B-tree maintenance as the floor (statement
batching and sorted inserts already killed at ~zero). This applies the
resolution phase's proven edge-index window to the whole parse lane:

beginBulkParseLoad/endBulkParseLoad on DatabaseConnection — FRESH-INIT
ONLY (incremental runs delete per-file rows through the file_path
indexes) — drop all 15 nodes/unresolved_refs/files secondary indexes
plus the 4 non-unique edge indexes for the parse phase's mass insert
(the UNIQUE edge identity index stays: OR-IGNORE dedup conflicts on it,
and its source prefix keeps mid-window reads indexed), then rebuild
each in one table scan before resolution, with a yield between builds
(the endBulkEdgeLoad watchdog rationale). A crash inside the window
heals on the next open — schema.sql re-applies CREATE INDEX IF NOT
EXISTS.

Measured:
- dubbo (cbm bar repo): parse-loop 4,306 → 1,787ms (−58%), rebuild
  665ms, warm fresh-init wall 10.5-11.3 → 8.46-9.39s (−19%); the bar
  gap vs cbm shrinks from ~3s to ~1.1s.
- Linux kernel 8c: envelope ≈ 14.2min, best ever (prior 14.8). Parse
  itself flat (linux parse is extraction-bound, not writer-bound) and
  the rebuild costs 21.6s — but every downstream phase dropped
  (resolution 517-589 → 423.4s, edge-recreate 36.5s, synthesis 157.1s,
  maintenance 16.3s): bulk-rebuilt B-trees are densely packed where
  incrementally-grown ones are fragmented, so every index-mediated read
  for the rest of the run pays fewer pages.

Gates: dubbo/gson/express/excalidraw full dumps byte-identical
(dubbo's canonical 441,270 lines reproduced); linux counts exact
2,049,153/6,413,518 and dump sha 6dd1185b… reproduced (10,446,478
lines); full suite green ×2 (153 files / 2588 tests). Incremental
sync paths untouched by construction (freshDb gate).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-19 23:02:54 -05:00
971a5a0483 perf(resolution): worker connection recycling — WAL-depth writes-under-readers fix, superphase −11.4% at 8c (#1362)
The §7a.6 anomaly probed to its mechanism with five discriminating runs
(§7a.7 table): main-thread B-tree writes triple under attached readers
because READERS PIN WAL checkpoint progress — the deep WAL taxes every
writer page operation (deletes 42.6s pool-off vs 118.8s pool-4 on
identical hardware; an aggressive 64MB valve recovers the writes but
overpays +129s in full-park folds; the v2 cache resurrection was
falsified — long-tail name traffic is uncacheable at any capacity).

Fix: workers close and reopen their read-only connections every 8
batches at the double-buffer's worker-idle boundary
(ResolverPool.recycleWorkers + QueryBuilder.rebind + a cadence call).
Reopens are sub-millisecond, resolver caches survive (only prepared
statements re-prepare), and the existing checkpoints advance instead of
parking. Failed recycle downgrades to sequential, same as a failed
fan-out.

Measured (8c pool-4, linux v7.2-rc2, cadence 25 → 8 iterated):
resolution superphase 715.0 → 633.6s (−11.4%), envelope best 14.8min,
recreate 59.7 → 45.3s. Byte-neutral everywhere: git dumps byte-identical
old-vs-new, linux dump sha 6dd1185b reproduced (10,446,478 lines),
counts 2,049,153/6,413,518, suite 2517 green. 2c unchanged by
construction (no pool → no recycling).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-18 16:58:03 -05:00
7cc23668b5 perf(resolution): batch-loop de-quadratic — keyset reads, changes-based guard, DB-scaled valve caps + resolve profiler (#1339)
The §7a.2 per-ref profile overturned the assumption the whole arc was
built on: resolveOne owns only ~93s of the kernel-scale ~433s batch loop.
Loop-stage attribution (CODEGRAPH_RESOLVE_PROFILE, shipped here) named the
rest: backpressure folds 111.2s, count guard 93.9s, batch reads 54.6s,
deletes/inserts/marks ~84s, settle 85.7s.

- Non-progress guard O(remaining)→O(1): the per-batch COUNT(*) walked every
  remaining pending row (O(N²/batch) per run, 93.9s). The cleanup queries
  now return summed SQLite , and zero-removals-from-claimed-work
  is the guard signal — the DIRECT evidence the count diff inferred (a
  mismatched-name resolver makes keyed cleanup no-op ⇒ changes=0). A real
  COUNT runs only on that suspicious path and arbitrates exactly as before.
- Batch reads OFFSET→keyset (54.6s→O(batch)): OFFSET re-walked the
  accumulated failed-row prefix every read; seeking past the last-seen
  rowid is prefix-independent and enumeration-order identical.
- WAL valve caps scale with DB size (env still wins): every fold re-writes
  hot pages (#1231 in bounded form — 111.2s at the flat 256MB cap);
  soft=clamp(dbSize/4, 256MB, 2GB) trades ~4× fewer folds for a transient
  WAL ≈ project size.
- CODEGRAPH_RESOLVE_PROFILE: per-outcome resolveOne histogram + loop-stage
  attribution, main + workers, off by default.

Gates: dubbo dump byte-identical; suite 2,491 passed / 4 skipped (kernel
required). Kernel-scale payoff run lands in the plan doc next.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 11:27:30 -05:00
2adc7f60c0 fix(db): WAL truncate at parked barriers ONLY — the timer-path truncate loses the race it was assumed to lose (#1336)
A truncate checkpoint started against an ACTIVE writer wins the lock and
then blocks that writer for its entire backfill; after the edge-index
recreate's multi-GB single-transaction burst that exceeds the writer's 5s
busy_timeout and fails the index with 'database is locked' (§7a.2 record
run, EXIT=1 at kernel scale — the small mid-resolution truncates folded in
ms and masked the hazard). Barrier truncates (backpressure/foldNow) are
collision-free by construction: the writer is awaiting the valve.

Dubbo gate: exit 0, peak 81MB (barrier folds carry containment), dump
byte-identical. Valve + sizing suites 27/27.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 09:11:32 -05:00
ca88d3bd15 fix(db,resolution): WAL file cap + cgroup cache credit + pool/parse sizing corrections from the instrumented kernel-scale runs (#1335)
Four §7a.1 instrumented-run findings, each measured:

1. File-size trigger + truncate-at-barrier: a fully-backfilled WAL still
   grows the FILE without bound — the writer only restarts at frame 0 when a
   commit finds zero reader marks, which the instrumented run showed never
   happens (file marched 361→721MB through two COMPLETE backfills; 22GB by
   phase end). backpressure() now also trips at 4× the soft cap on raw file
   size and TRUNCATEs at the parked barrier; the timer path truncates
   opportunistically after complete backfills. Dubbo peak: 251MB → 69MB at
   the same 16MB valve; dumps byte-identical under aggressive folding.

2. cgroup memory credit: memory.current counts reclaimable page cache — a
   post-parse container read 57MB of headroom on a 6GB box and silently
   disabled the pool. inactive_file is credited back (the docker-stats
   working-set convention); the same run now reads a sane 4.4GB budget.

3. Pool at 2 cores reversed: sequential resolution measured FASTER than
   pooled-6-on-2 at kernel scale (853s vs 1,150s), and synthesis is
   Amdahl-bound by cFnPtrEdges (306s of 358s) so pooling it bought nothing.
   cpuCap = min(ap−1, 6), no floor: ap=2 → sequential is the fast path.

4. Parse floor of 2: one parse worker at a 2-cpuset measured 34% slower
   (493s vs 369s) — main + store-worker don't fill the second core. Floor
   restores the baseline (373.5s measured).

Plus the observability §7a.1 burned three 25-minute cycles for: valve
armed/fire/timer-pass/heartbeat lines, checkpoint-worker error capture,
pool sizing decisions (incl. the disabled path), backpressure-hook
presence — all behind CODEGRAPH_SYNTH_TIMINGS / CODEGRAPH_WAL_VALVE_DEBUG.

Suite: 2,490 passed / 4 skipped (kernel required). Kernel-scale record
runs with this build follow in the migration plan §7a.1.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 08:56:26 -05:00
8c1e821495 fix(db): WAL valve — TRUNCATE at parked barriers, futility latch, CODEGRAPH_WAL_VALVE_DEBUG (#1334)
Three §7a.1 run-1 lessons (kernel-scale 2c/6GB: EXIT=137, WAL 22.2GB with
the backpressure hook DEPLOYED):

1. TRUNCATE at parked barriers: a completed passive backfill bounds the
   un-checkpointed backlog but the FILE only stops growing when a commit
   finds zero readers holding WAL marks — rare while pool workers cycle
   (dubbo debug baseline: file climbed monotonically through six completed
   pass-1 backfills). At a parked barrier the no-reader window is
   guaranteed, so chop the file there with wal_checkpoint(TRUNCATE)
   (off-thread, 2s busy_timeout — a racing reader degrades it to a no-op).

2. Futility latch: when backfill gives up (pinned reader), parking again at
   every over-cap boundary burns a 20-pass checkpoint attempt — each a
   worker thread + fresh connection against a multi-GB DB — per batch. Two
   consecutive give-ups now disable parking for 60s; a pinned phase degrades
   to pre-valve behavior instead of OOM-amplifying.

3. CODEGRAPH_WAL_VALVE_DEBUG=1 surfaces valve decisions without the
   caller's verbose plumbing, and give-up lines print under
   CODEGRAPH_SYNTH_TIMINGS — run 1 failed silently because give-ups were
   verbose-gated.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 08:17:33 -05:00
4efc6c70e2 fix(scale): kernel-scale hardening — OOM-safe pass skipping + watchdog-safe index recreate (#1323)
Two hazards found by running today's full stack against the Linux kernel
(70,129 files) in the cg1212 repro container:

1. The parallel-synthesis fallback retried a worker-failed pass on the MAIN
   thread. At multi-million-node scale a worker failure is usually a memory
   ceiling, so the retry would OOM the process and take the whole index with
   it. Above 1.5M nodes a failed pass is now skipped with a clear stderr
   message (its synthesized edges are absent; the index completes). Below
   that, the main-thread retry stays — small-scale worker crashes are
   transient and the retry keeps coverage.

2. endBulkEdgeLoad rebuilt all four edge indexes in one synchronous span —
   measured 79s at kernel scale, past the #850 liveness watchdog's 60s
   stall window. A daemon-triggered re-index would have been SIGKILLed right
   after doing the work. Now async with an event-loop yield between builds,
   keeping each stall to a single index (~20s at kernel scale).

Validation: full Linux kernel index to completion in the repro container —
2,048,674 nodes / 6,405,964 edges, EXIT 0, zero passes skipped, on a 2-CPU
VM (worst case: pool disabled, sequential resolution + synthesis) in ~27min.
Phase walls: parse 6.0m, resolution 19.5m (incl. synthesis 6.3m, recreate
79s), maintenance 74s. Suite green (2444).

Also adds docs/design/native-extraction-kernel.md — the spike-validated
design for the native extraction kernel (Rust parse+walk over dubbo's Java:
202ms rayon / 1.07s single-thread vs 4.7s for the current wasm pipeline).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 19:09:01 -05:00
567b4ad4be perf(resolution): drop non-unique edge indexes during the bulk resolution window, byte-identical graphs (#1322)
The resolution persist's measured cost is B-tree maintenance on the edges
table's five indexes (offline replay of a 224k-edge resolution set: 2.8s with
all indexes, 1.1s with only the unique identity index, +0.3s to recreate the
rest). On big runs (same >=150k-ref gate as the resolver pool) the four
non-unique edge indexes are now dropped for the batch loop and recreated in
one pass each before synthesis.

Why this is safe:
- idx_edges_identity stays: INSERT OR IGNORE's dedup conflicts on it (#1034),
  and its leftmost column is `source`, so the only mid-window edge reads —
  resolution's supertype walks (implements/extends by source) — keep an index
  via its prefix (verified with EXPLAIN QUERY PLAN).
- The window closes BEFORE synthesis, whose passes read kind-keyed, and on
  every error path (finally).
- A crash inside the window heals on the next DatabaseConnection open —
  schema.sql re-applies CREATE INDEX IF NOT EXISTS, same recovery as the FTS
  bulk-load pattern this mirrors.
- Concurrent readers (a daemon serving the project mid-index) stay correct;
  target/kind-keyed reads degrade to scans only for the window's duration.

dubbo (4,402 files): persists 4.0s -> 3.0s, fresh init 11.9s -> ~11.1s,
graph byte-identical. excalidraw (below the gate): untouched, byte-identical.
Recreation cost ~250ms, logged under CODEGRAPH_SYNTH_TIMINGS as
edge-index-recreate. Suite green (2444).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 18:26:30 -05:00
cf38ef65af perf(synthesis): fan dynamic-dispatch passes across the resolver pool, byte-identical graphs (#1321)
The ~36 independent synthesis passes (callback/event/framework wiring) ran
sequentially on the indexer's main thread — 2.0s of a 4,402-file Java repo's
index, and the stage where kernel-class repos die (#1212). They now live in
an explicit registry (SYNTH_PASSES) and, when the resolver pool is alive
(>=150k-ref repos), fan out across its read-only workers: dubbo synthesis
2,024ms -> ~900ms (-55%), total fresh init 13.5s -> 11.9s. Graphs verified
byte-for-byte identical on both the pool path (dubbo) and the sequential
path (excalidraw).

Why this is safe: no pass's edges persist until the ordered merge, so every
pass sees the same committed post-resolution DB state in either mode, and
results merge in registry order regardless of completion order — the
first-seen dedup is unchanged. The pool now survives through synthesis
(destroy moved after it) instead of being torn down moments before the one
stage that could reuse it.

Robustness: a pass that fails on a worker (crash, OOM) is retried on the
main thread — a synthesizer blow-up now costs one worker instead of the
whole index, which is half the #1212 story on very large repos.

Also: ref-row cleanup deletes now run as one transaction with a cached
statement instead of one implicit commit per 500-row chunk (mechanically
fewer WAL commits; matters most on HDD-class storage). A set-based rewrite
of failed-ref parking was tried, measured ~zero on NVMe, and dropped — the
remaining persist cost is edge-index B-tree maintenance, not statement
dispatch.

SYNTH_PROGRESS_STEPS now derives from the registry (passes + fixed marks);
the pin test counts registry entries plus literal __mark sites.

Suite green (2444). Sequential-path timing unchanged on excalidraw.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 18:07:51 -05:00
a2f3c31a97 perf(resolution): defer checkpoints and double-buffer persist during resolution, byte-identical graphs (#1320)
Fresh init on a 4,402-file Java repo (dubbo): 18.2s -> 13.5s (-26%), with
the resolution phase going 12.6s -> 7.9s (-38%). Graphs verified
byte-identical on both the pool path (dubbo) and the sequential path
(excalidraw).

Two changes:

1. The fastInit+pool path restored WAL for the resolver workers but left
   wal_autocheckpoint at its default, so the persist loop inline-checkpointed
   hot pages all phase long (#1231's pathology inside resolution — measured
   at 58% of resolution wall). Checkpointing is now deferred behind the
   bounded valve and folded once at maintenance, mirroring the deferWal path.

2. The resolution loop is double-buffered: batch k+1 is prefetched (OFFSET
   past batch k's still-pending rows, under an explicit ORDER BY rowid) and
   fanned out across the pool while batch k's ref cleanup runs on the main
   thread. Batch settle-waits dropped 2572ms -> 117ms.

Correctness invariant found by the byte-identical gate and now documented in
the loop: batch k+1's resolution READS batch k's edges (resolveMethodOnType
walks supertype chains over extends/implements edges that resolution itself
inserts), so edges must persist BEFORE the next batch fans out; only the ref
cleanup overlaps.

Also extends the CODEGRAPH_SYNTH_TIMINGS instrumentation with phase labels
(grammar-init, parse-loop, fts-rebuild, resolver-reinit, resolution,
callback-synthesis) and pool timings (worker open/resolve, per-batch mode,
persist), so the next profile is one env var away.

Suite green (2444). Sync path timings unchanged. Pool floor re-validated:
forced-on at 40k refs is still net-slower, so the 150k threshold stands.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 17:26:29 -05:00
5736e24bb6 perf(index): faster fresh indexing + parallel reference resolution, byte-identical graphs (#1305)
* perf(index): ~34% faster fresh indexing, byte-identical graphs

Profiling a fresh init on a medium TS repo (excalidraw, 657 files) showed
the main thread as the critical path: per-row SQLite statement calls,
repeated import-resolution walks, and per-row FTS trigger firings, with
the parse workers ~75% idle behind it. This lands the semantics-preserving
tranche of fixes:

- Multi-row batched INSERTs (nodes/edges/unresolved refs/name segments)
  behind cached per-batch-size prepared statements; row order preserved,
  so rowid-based resolution determinism (#1015) is unchanged.
- storeFileBundle: one transaction per file instead of four; nested
  transaction() calls now flatten (BEGIN-in-BEGIN previously threw, so no
  caller depended on nested rollback).
- Dedicated store-writer thread for the fresh-DB bulk path (bundles
  applied in file order on a single writer connection; main thread does
  no DB work during the parse loop). Kill switch: CODEGRAPH_NO_STORE_WORKER=1.
- Bulk FTS mode: drop the nodes_fts sync triggers during the bulk load,
  rebuild once at the end; crash inside the window self-heals on the
  next open.
- Per-context memos for resolveImportPath/findExportedSymbol + a per-file
  exported-symbol index, invalidated exactly where clearCaches() already
  resets the resolver's own caches.
- Fast-init on completely fresh DBs (journal in memory, no fsync until
  the index completes; interrupted init re-runs from scratch). Kill
  switch: CODEGRAPH_NO_FAST_INIT=1.
- MaybeYield returns undefined on the not-due path so per-ref yield
  checks stop paying a promise + microtask hop each.
- Parse pool prewarm for bulk indexing; compile-cache enabled at CLI and
  worker entry points.

Excalidraw fresh init: 5.11s -> 3.36s median (n=5, warm cache, M-series).
Graph dumps byte-identical across init, re-index, and sync paths; full
suite green (2403 passed).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* perf(resolution): parallel reference resolution with canonical admission

Fan resolution batches across a pool of read-only worker threads, each
hosting a full ReferenceResolver over its own SQLite connection; results
are admitted on the main thread in chunk order, so edge insertion order,
row cleanup, failure parking, and deferred post-pass queues are exactly
the sequence the single-threaded loop produces. Per-ref inputs match the
baseline because the sequential path already resolves each batch against
the state committed BEFORE that batch.

Validated byte-identical on excalidraw (pool forced on) and apache/dubbo
(4,048 Java files): dubbo full index 39s -> 19s (2.05x) with identical
graph dumps (91,495 nodes / 223,953 edges).

The pool only engages when total pending refs clear a threshold (default
150k, CODEGRAPH_PARALLEL_RESOLVE_MIN to tune, CODEGRAPH_NO_PARALLEL_RESOLVE=1
to disable): measured on a ~58k-ref repo the workers' boot CPU contends
with resolution on the same cores and makes indexing slower, so small
repos keep the sequential path. When fast-init left the DB in
memory-journal mode, WAL is restored before resolution only when the pool
will run (readers + rollback-journal writers don't mix).

Also: sqlite adapter readOnly open support.

TreeCursor spine rewrite of the body walker was built, measured neutral
on real repos and equal in a 20k-child microbench (web-tree-sitter's
namedChild(i) is not quadratic in this binding), and rejected — per-node
JS<->WASM marshaling is the floor, which a traversal swap cannot remove.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 14:21:15 -05:00
e871c49a31 fix(resolution): clean up processed refs by row id so batch boundaries can't drop sibling call sites (#1269) (#1270)
Post-batch cleanup deleted resolved refs (and parked failed ones) by
(from_node_id, reference_name, reference_kind) — no line/col. When one
caller had several call sites to the same callee and a batch boundary
split them, the first batch's cleanup removed every row with that key,
including later-batch siblings that were never attempted — their edges
were silently never created. On nlohmann/json this ate 422 real call
edges (write_cbor's 38 to_char_type calls indexed as 11).

Refs loaded from unresolved_refs now carry their row id through
resolution, and all three persist paths (sync resolveAndPersist, the
yielding retry pass, the batched drain loop) delete / mark-failed by
exactly that id. The key-tuple methods remain only as the fallback for
hand-built refs from the public API. Failed-parking gains the same
precision: outcome can differ per call site (receiver inference reads
the ref's line), so a sibling must not inherit another row's failure.

Also untracks the zz-scratch local test files that slipped into #1268
and gitignores the pattern.

Validation: red-green regression test (5 sites, batch size 2 — old code
kept 2 edges, fix keeps 5); nlohmann/json re-index is a strict superset
of the previous edge set (0 lost, 422 recovered, spot-checked against
source).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-12 20:09:03 -05:00
9d0cd3a7d1 fix(sync): resolve cross-file refs when an edit adds or removes the satisfying symbol (#1240) (#1249)
* chore: ignore .kommandr/ directory

* fix(sync): resolve cross-file refs when an edit adds or removes the satisfying symbol (#1240)

Incremental sync scoped reference resolution to the changed files' own
refs, and a completed pass deleted every ref it failed to resolve — so
a symbol change in one file could never repair references in UNCHANGED
files, in either direction, until a full re-index:

- New-export case: a.ts imports/calls `greet` before b.ts defines it.
  The failed refs were deleted at index time; when b.ts later gained
  `greet`, nothing revisited a.ts — the calls/imports edges stayed
  missing while status reported a clean index.
- Removal case: when a re-index (or file deletion) dropped a symbol,
  the incoming edges cascade-deleted and the callers — whose resolved
  refs had been consumed — never got a chance to rebind to an
  alternative definition or reconnect when the symbol returned.

Fix, sharing one lifecycle:

- Schema v8: unresolved_refs gains status ('pending'/'failed') and
  name_tail (last dotted segment, so `h.greet` is findable by `greet`).
  Both resolver persist paths now park unresolvable refs as failed
  instead of deleting them. All pending-work readers (batched drain,
  non-progress guard, #1187 orphan sweep, status pendingRefs) filter to
  pending, preserving their invariants and keeping status honest.
- Sync retry: after scoped resolution, failed refs whose name tail
  matches a symbol name now present in the changed files are re-resolved
  through a per-ref-yielding path (watchdog-safe, #1091 class). Names
  matching >500 failed refs are skipped as external/builtin noise (#999
  rationale).
- Removal side: createEdges stamps each resolution edge with its
  originating reference (metadata.refName, + refKind when kind promotion
  rewrote it). When the #899 restore misses a target or sync deletes a
  file, the dropped edge is resurrected as exactly that ref — re-resolved
  in the same sync (rebinding to an alternative definition) or parked
  failed until the symbol reappears. Edges without the stamp (pre-upgrade,
  synthesized) still drop silently: reconstructing from the target's plain
  name would strip receiver context and risk a rebind a full re-index
  would never make.
- Pure-removal syncs clear resolver caches so a long-lived daemon can't
  resolve resurrected refs against the pre-removal graph.

Validated: issue repro now yields a graph byte-identical to a full
re-index; move/remove-readd/file-deletion scenarios all rebind or heal;
baseline-vs-new A/B on express and gin shows identical node/edge counts
and no timing regression (DB grows ~25% from the parked ref rows — pure
cache, reset by any full re-index). 8 regression tests added.

Fixes #1240

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 12:19:08 -05:00
a11a439002 fix(indexing): HDD-class storage — false parse timeouts, dropped files, and WAL checkpoint write-back (#1231) (#1242)
Parse timeouts are now judged by the worker's own clock: the base timer
only marks a job late (after a long synchronous store stall, Node runs the
timers phase before the poll phase, so the timer fired before an
already-delivered result was processed — killing workers over parses that
took milliseconds, even on 0-byte files); a result arriving before a 3×
hard-kill backstop is accepted, timed-out files are retried, and
CODEGRAPH_PARSE_TIMEOUT_MS overrides the budget. Grammar WASM bytes are
pre-read once on the main thread and handed to every worker, so
spawns/respawns load grammars from memory instead of re-reading a
saturated disk.

Bulk indexing defers WAL auto-checkpointing for the whole run: the default
1000-page interval re-writes hot B-tree/FTS pages into the main DB file
over and over — ~95% of all disk I/O under throttled measurement. A
WalCheckpointValve bounds WAL growth with off-thread PASSIVE backfill
passes (never blocking the writer or the #850 watchdog heartbeat), pauses
the writer for a full backfill if the disk truly can't keep up, and folds
the WAL at the parse→resolution boundary so post-parse reads never page a
bulk-write-sized WAL. Opt out with CODEGRAPH_NO_WAL_DEFER=1; tune with
CODEGRAPH_WAL_VALVE_MB.

Measured at 150 IOPS (HDD class): commons-lang 1526s → 59s with 0 dropped
files (was 8); guava-scale completes in 7.6 min with a full graph where
v1.3.1 needed 25 min for a repo 5× smaller. Unthrottled: no change.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 03:42:30 -05:00
a3f90089e8 fix(indexing): bounded-memory yielding pipeline tail + daemon session fixes (#1212) (#1226)
Large-codebase indexing died at the end of "Resolving refs" two ways:
watchdog kills of healthy work (24k-file Java on Windows, #1212 — third
iteration of the #1091/#1122 class) and hard OOMs (Linux kernel scale,
where v1.3.0 could not complete at any watchdog setting). Root causes:
~31 of 37 dynamic-edge synthesis passes ran start-to-finish with no
yield points, several materialized whole-graph snapshots (kotlin
expect/actual opened with getAllNodes() — 2M nodes in one array; the
C fn-pointer pass retained every C file's contents twice plus every
function node), and the post-index WAL checkpoint ran minutes of
synchronous IO on the main thread, killing even a successful index at
the finish line.

The pipeline tail now follows the same discipline as the rest: never
hold O(graph) in the heap, yield everywhere.

- All synthesis passes stream node-kind scans (cursors, not arrays) and
  yield on time-budgeted checkpoints; language gates skip passes whose
  filters a project's file languages provably can't satisfy.
- kotlin expect/actual filters SQL-side; c-fnptr caches are LRU-bounded,
  units stream one file at a time, and the all-functions array +
  write-only id map are gone; spring reads each .java once, not twice.
- runMaintenance moved to a worker thread (own SQLite connection);
  per-file store commits chunk with yields behind a serialized flush
  chain (preserving #1015 file-order determinism); resolver warm-up
  streams the DISTINCT name set; resolution batch-tail and merged-edge
  inserts run in bounded sub-transactions.
- Daemon: fixed a socket-handoff race that could leave a fresh MCP
  session permanently silent (client-hello tail unshifted into a
  flowing stream with zero listeners — the long-standing #662 test
  flake was this real bug); first tool call no longer queues behind
  the query pool's cold start (pool.ready gate).

Validation: Linux kernel (70,129 files, 2.05M nodes, 6.4M edges) fully
indexes in 27m8s on a 2-core/6GB container at default heap + default
watchdog; llvm-project (180k files) completes under 1GB RSS including
kill-and-sync recovery; synthesized-edge and full-graph parity are
byte-identical vs baseline on elasticsearch/redis/vim; the ex-flaky
daemon test passed 25/25 under load. Env-gated diagnostics kept:
CODEGRAPH_SYNTH_TIMINGS pass/phase timings, CODEGRAPH_MCP_DEBUG hop
tracing. Design record: docs/design/main-thread-stall-followup.md.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-08 23:18:23 -05:00
7f325134e0 feat(extraction): add Nix language support with module-system option wiring (#324, #332 via #648 — carries #1084) (#1190)
Carries @TyceHerrman's #1084 as the functional base. Extraction + file wiring (imports/modules lists, callPackage), module-system option-path synthesizer, lexical-scope resolution gates, ABI-15 wasm rebuilt from upstream source. Validated on agenix, nix-darwin, home-manager, and nixpkgs (44,368 files, 3m49s, 1.30M nodes).

Co-authored-by: Tyce Herrman <Tyce.Herrman@pm.me>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 12:41:32 -05:00
35611b92bb fix(prompt-hook): close the segment-vocab integrity gaps (#1141, #1142, #1144, #1145, #1146) (#1150)
Five hardening fixes to the #1136 MEDIUM (graph-derived) tier:

- #1141: updateNode() now writes the segment vocabulary like insertNode()
  does — framework post-extract renames (NestJS route prefixing) left the
  new name permanently unsearchable (the old rows orphaned, the backfill
  gated on an EMPTY vocab, so even a full re-index re-created the drift).
- #1142: new CodeGraph.healSegmentVocabIfEmpty() — the hook opens the
  graph without sync, so a database migrated from pre-vocab schema kept
  the MEDIUM tier dormant until some unrelated sync ran. The hook heals
  on first use (one SELECT when populated; lock-aware, defers to a
  running sync) and records noop-vocab-empty when it can't.
- #1144: a name whose only nodes are file/import kind is skipped instead
  of falling back to surfacing an import statement as a matched symbol;
  import specifiers no longer enter the vocab at all (shared
  isSegmentableKind gate across insertNode/updateNode/rebuild page query)
  since they can never be surfaced and only inflate rarity statistics.
- #1145: plural variant folding is keyed on English plural spelling —
  bare-s plurals no longer mint a bogus -es sibling (services→servic),
  unambiguous sibilant-es plurals no longer mint a bogus -s sibling
  (classes→classe), trailing -ss singulars no longer strip (class→clas);
  genuinely ambiguous endings (caches/databases) still emit both keys.
- #1146: getSegmentCoOccurrence folds variants to their original word
  inside the SQL (CASE mapping + COUNT(DISTINCT word)) so a plural pair
  of ONE word can't tie with a genuine two-word match and crowd it past
  the pre-fold ORDER BY/LIMIT; the JS re-check stays as the honesty layer.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 17:23:54 -05:00
e699ee9686 feat(prompt-hook): graph-derived gate tier + confidence-tiered injection + gate telemetry (#1136)
The keyword gate (#1126) can never know a repo's domain nouns. This adds
the graph-derived tier the design discussion converged on: symbol names
are split into prose segments at index time (name_segment_vocab, riding
the insertNode write path), and the hook verifies a prompt's plain words
against them — "the state machine des commandes" → OrderStateMachine, in
any language whose technical nouns are Latin script.

Confidence now decides HOW MUCH to inject, not just whether:
- HIGH (keyword, or index-verified code token): full explore injection,
  unchanged — the validated adoption lever.
- MEDIUM (segment matches only): a ~500-byte pointer naming the matching
  symbols; the AGENT writes the explore query. Never runs explore, so a
  fuzzy match can't inject 16KB of wrong-feature context.
- Silent otherwise, as before.

Precision is derived from the repo's own naming statistics plus measured
FP fixes: co-occurrence (≥2 words on one name) always qualifies; a single
word must be ≥5 chars, cluster across 2–25 names (singletons are prose
coincidence: "deploy to production" → matchesNonProductionDir), match a
multi-segment name, and not be an English function/filler word (the one
place a word list is honest: identifiers are English, so only English
prose collides). Every candidate is re-verified against nodes before
being surfaced — vocab rows are proposals, deletions leave orphans by
design, a full index rebuilds from scratch, and sync heals pre-upgrade
databases (batched + yielding; emptiness captured at sync ENTRY so the
sync's own writes can't mask the backfill).

Schema v7 migration is DDL-only (instant; none of the #1067 row-churn
hazards). Gate outcomes roll up as anonymous usage counters
(prompt-hook-gate-<outcome>, names only, never content) through the
existing telemetry pipeline — recall becomes measurable, and the counters
are the agreed kill-criterion data for ever revisiting a local classifier.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 14:35:38 -05:00
9684b3b5a5 fix(index): rebuild a poisoned/oversized index by recreating the DB, not row-DELETE (#1067) (#1073)
Follow-up to #1065/#1066. Those stopped a *new* index from scanning an
ignored gitlink corpus, but a project that had already built the multi-GB
graph before upgrading still couldn't recover: `codegraph index` printed
only "Indexing project" and was then SIGKILLed (137) by the #850 watchdog
~60s later, before scanning even started.

Root cause is not the scanner. `index` cleared the old graph with a
synchronous `DELETE FROM nodes/edges/files`. `nodes` carries an FTS5
`AFTER DELETE` trigger, so deleting ~1.6M rows fires ~1.6M FTS
delete-markers — O(rows), and it grows the WAL further before it can
finish. A deterministic probe puts the DELETE-clear at 20.4s on 1.5M
synthetic nodes (WAL 1.16->2.14GB); at the report's denser ~2.6KB/node WAL
that crosses the 60s main-thread watchdog. `open()` was never the wedge.

A full re-index is documented as "same result as a fresh init", so make it
one: discard the database files and re-initialize, instead of opening the
old DB and DELETE-ing every row.

- db: add removeDatabaseFiles(dbPath) — unlinks codegraph.db + its
  -wal/-shm sidecars (O(1) regardless of size; sidecars best-effort).
- index: add CodeGraph.recreate(projectRoot) — discards the files and
  returns a fresh, empty instance. Never opens or migrates the poisoned
  DB. POSIX unlinks an open file fine (a live daemon heals via
  reopenIfReplaced, #925); a Windows file lock becomes an actionable
  "stop the daemon / remove .codegraph" error.
- cli: `codegraph index` now calls recreate() instead of open()+clear();
  both clear() calls dropped. The public clear() API is unchanged.

This also reclaims the disk the bloated db/-wal were holding.

Validated: deterministic probe (DELETE O(rows) vs recreate O(1)); an
end-to-end run through the built binary recovering a real 800K-node /
419MB poisoned DB in 0.3s with no wedge and the correct small graph; new
unit + CLI regression tests; existing #874 index tests still green.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-29 23:15:41 -05:00
0da2dcec8e fix(db): dedup edges with a UNIQUE identity index so INSERT OR IGNORE works (#1034) (#1050)
`insertEdge` has always used `INSERT OR IGNORE`, but the edges table carried
no UNIQUE constraint — only an autoincrement PK and non-unique indexes — so
`OR IGNORE` had nothing to conflict on and behaved like a plain INSERT.
Whenever two extraction/resolution passes emitted the same edge (e.g. a
return type captured by both a type-reference and a value-reference pass),
the graph stored byte-identical duplicate rows: ~527 on this repo, inflating
edge counts and letting callers/impact list the same relationship twice.

Add a UNIQUE identity index on (source, target, kind, IFNULL(line,-1),
IFNULL(col,-1)) — in schema.sql for fresh databases and migration v6 (dedup
existing rows, then create the index) for existing ones. IFNULL folds the
nullable line/col so coordinate-less edges (synthesized / file-level) dedup
too; SQLite otherwise treats each NULL as distinct. Distinct call sites
(same source/target/kind, different line/col) are preserved — only
byte-identical structural duplicates collapse. This is the storage-layer
invariant the reporter identified: it makes OR IGNORE keep its promise and
catches every double-emit, present and future, rather than chasing each
emitting pass.

Migration v6 is deterministic (keeps the lowest id per identity group) and
idempotent (IF NOT EXISTS index; no-op DELETE once unique). The DELETE's
GROUP BY matches the index expression exactly so creation can't fail on a
leftover pair.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-28 21:34:33 -05:00
30dc303f4c fix(db): chunk deleteResolvedReferences IN-list under the SQLite param limit (#1001) (#1023)
deleteResolvedReferences bound every id into a single unbounded
`IN (...)`, so a list longer than SQLITE_MAX_VARIABLE_NUMBER (32766 on
the bundled node:sqlite) threw "too many SQL variables" — the one IN-list
in queries.ts that #540 missed. It's reachable only through the exported
QueryBuilder (library use): the internal resolution path uses
deleteSpecificResolvedReferences, which binds per-row and is immune, so
the CLI/MCP indexing pipeline was never affected. Wrap it in the same
SQLITE_PARAM_CHUNK_SIZE loop every sibling query uses, and add a
regression test (33k ids, past the real 32766 ceiling) that throws
without the fix.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-27 14:00:55 -05:00
0a91d0f512 perf(resolution): fix O(K²) import-node blowup in "Resolving refs" (#915) (#965)
* perf(resolution): resolve imports to definitions, not sibling import nodes (#915)

"Resolving refs" crawled (tens of minutes) on large projects — most painfully
ones mixing a big front-end and back-end. An external package or module imported
across hundreds/thousands of files (react, a shared UI package, Python
logging/typing) is re-declared as an `import` node in every importing file, so
its unresolved import ref fell through to the exact-name matcher, which scored
all K same-named import nodes via findBestMatch — K refs x K candidates = O(K^2)
per package, producing only meaningless import->import edges.

Fix: exclude `import`-kind nodes as name-match targets (they're statements, not
definitions; real import->definition resolution is the import resolver's job).
Plus two safe constant-factor wins in findBestMatch: hoist the per-candidate
ref.filePath split, and skip cross-language candidates when a same-language one
exists (provably the same winner — same-language scores >=50, cross-language
maxes at 35).

Measured: superset (Py+TS) candidates scored 7.5M -> 833K (9x), non-import edges
preserved (+1618 now resolve to real defs), ~22K useless import->import edges
removed; kubernetes (Go) computePathProximity 37.2s -> 5.0s; synthetic 8k-file
mixed repo (K=4000) resolution 16.0s -> 1.7s. Full suite green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: correct stale better-sqlite3/wasm references to node:sqlite

The SQLite backend has been Node's built-in node:sqlite (real SQLite, WAL + FTS5,
from the bundled runtime) for a while — there is no native build step and no
node-sqlite3-wasm fallback. README and the docs site were already updated; this
catches the stragglers:

- CLAUDE.md: the src/db/ backend description and the sqlite-backend test note.
- src/db/index.ts, src/mcp/tools.ts: two code comments that still blamed "the
  wasm backend" for non-WAL behavior (reworded to "when WAL isn't in effect").

Leaves tree-sitter grammar wasm (web-tree-sitter / --liftoff-only) untouched —
that's a different, still-current use of wasm.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore(telemetry): drop the dead sqlite_backend field (schema v2)

node:sqlite is now the only backend, so the `index` event's `sqlite_backend`
field was a constant ("native") carrying no signal — and the `install` event
never actually sent it. Remove the field and the backendKind() helper, bump the
telemetry SCHEMA_VERSION 1 -> 2, and update TELEMETRY.md + docs/design/telemetry.md.

The ingest worker is deliberately left tolerant: `index` doesn't require the
field and schema_version validates as nonNegInt(99), so v2 events ingest fine and
old clients still sending v1 + sqlite_backend keep validating too. Added a legacy
comment there explaining it's safe to drop once old-client share is negligible.

telemetry.test.ts: the assertion pinning schema_version and a stale-claim fixture
line updated 1 -> 2. All telemetry tests pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-23 11:26:23 -05:00
e43ac82cdf fix(mcp): reopen the database when it's replaced on disk instead of serving a deleted inode (#925) (#940)
A long-lived `serve --mcp` process opens `.codegraph/codegraph.db` and holds
the fd for its whole life. If `.codegraph/` is removed and recreated AT THE
SAME PATH while it runs — `git worktree remove <p>` + re-add, or `rm -rf
.codegraph` + `codegraph init` — the held fd points at the now-unlinked inode
and can never see the new index. The server serves the pre-removal snapshot
(renamed/removed symbols still "live", new ones missing); `codegraph sync`
can't refresh it and the CLI (a fresh process) diverges. Only a restart fixed
it — and because the daemon registry is keyed by path, a same-path recreate
routes new clients straight back to the same stale daemon, so the fix has to
self-heal inside the running process.

- DatabaseConnection records the DB file's (dev, ino) at open and exposes
  isReplacedOnDisk() — a different inode now at the same path. POSIX-gated:
  Windows can't unlink an open file and its st_ino is unreliable, so it never
  fires there.
- CodeGraph.reopenIfReplaced() opens the live file first, then swaps the
  connection + query layers IN PLACE (via the new wireLayers() helper), so
  every holder of the instance (the daemon's default project, cached
  projectPath connections) heals without a restart. Closing the dead handle
  also frees the leaked db/-wal/-shm fds pinning the unlinked inode.
- ToolHandler.getCodeGraph calls it (freshen) before serving — one stat() per
  call, a no-op unless the inode actually changed, never throws into a tool.

Tests cover isReplacedOnDisk (unchanged / replaced / absent / Windows-gated)
and an end-to-end reopen that heals a held instance after a same-path recreate
(asserts the pre-heal staleness too). Validated on macOS with a dist probe of
the raw instance and the MCP serving path; full suite green.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-21 14:03:07 -05:00
JoshandGitHub 6110df8b76 fix(sync): preserve cross-file caller edges across callee re-index (#899) (#927)
`storeExtractionResult` deletes a re-indexed file's nodes via `deleteFile`,
which cascades through `edges.FK ... ON DELETE CASCADE` to delete every edge
whose source OR target is one of those nodes. Edges whose source is in the
re-indexed file are re-emitted by the extractor, but edges whose source is in
a *different* (unchanged) file are not — they are silently dropped. This is
issue #899: re-indexing a callee file severs `calls`/`references` edges from
callers that import it via module-attribute access (`pkg.mod.fn(...)`), so
`codegraph callers fn` reports 0 callers for functions that have real call
sites. A docstring-only edit on the callee is sufficient to trigger it.

The bug affects every incremental path that routes through `sync()` /
`indexFile()`: `codegraph sync`, the file-watcher auto-sync (which calls
`sync()`), and the git sync hooks. `codegraph index` was already fixed by
#894 (it now clears-then-rebuilds, so it's a full re-extraction, not
incremental). `sync` remains the fast incremental path and still has the bug.

Fix: before the delete, snapshot incoming cross-file edges paired with the
target node's (name, kind). After re-inserting the file's nodes + same-file
edges, re-insert the snapshot — re-resolving each edge's target to the
re-indexed node's NEW id by (filePath, kind, name). Node ids are
`sha256(filePath:kind:name:line)`, so any line shift in the callee file (e.g.
a docstring-only edit above the symbol) changes every target id and a naive
re-insert by old id would drop them all. Matching by (kind, name) is stable
across line shifts; if the symbol was renamed/removed, no match is found and
the edge stays dropped (correct). `insertEdges` still filters to endpoints
that exist, so edges whose caller (source) was deleted are also dropped.

Regression tests in `__tests__/sync.test.ts` model the RAGFlow production
case: a `pkg/mod.py` with two callees, both called from `test/test_callers.py`
via `mod.<fn>(...)`. The first test confirms a docstring-only edit that shifts
the second callee's line preserves both incoming edges. The second test
confirms renaming a callee correctly drops its old incoming edge (no phantom
preservation against a non-existent symbol).
2026-06-21 11:47:01 -05:00
75ae1e8bd9 fix(search): down-weight the project name in ranking — completes #720 (#748)
The per-word path fix (#745) brought the backend to parity but not above:
the project name still gave the lexically-matching stack a residual dir
match + an FTS class-name match, so a backend query that included the
project name still ranked the frontend at/above the backend.

Derive the project name from go.mod module / package.json name / repo dir,
and treat a query word matching it as non-discriminative: drop it from path
relevance and from codegraph_explore's PascalCase type-disambiguation bias
(reporter's suggestions #1/#2) — unless it's the only query word, so a bare
project-name search still scores.

Narrow by construction: the down-weighting fires ONLY when a query word
matches the derived project name (≥5 chars), so every query that doesn't
name the project is byte-identical. On the reporter's repro the backend
controllers now top a backend question that includes the project name;
queries without it, bare project-name queries, and normal symbol queries
are unchanged. Query-time only (no re-index).

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 22:43:54 -04:00
fd03f31b2c fix(cpp): resolve calls through singletons/factories/chained getters (#645) (#742)
A C++ method call whose receiver is another call's result — `Foo::instance().bar()`,
`WidgetFactory::create().draw()`, `openSession()->run()`, or the same stored in an
`auto` local first — lost the receiver's type during extraction. The callee degraded
to a bare method name, so when two classes shared a method name the call silently
resolved to whichever was indexed first (or not at all), corrupting callers / impact /
trace with a plausible-but-wrong edge.

Three parts:
- Capture C++ return types (new nodes.return_type column, schema v5): the
  function_definition's `type` field, normalized — smart-pointer pointee unwrapped,
  void/primitives dropped.
- Preserve the inner-call receiver in extraction: a C/C++ field_expression whose
  receiver is itself a call is encoded `inner().method` instead of dropping to the
  bare name. Other languages keep the existing behavior.
- New resolution strategy (matchCppCallChain): infer the receiver's class from the
  inner call's return type, then resolve AND validate the method on it. Handles
  singletons/accessors, factories returning a different type, free-function
  factories, make_unique/make_shared/new/direct construction, single-level member
  chains, and namespace-qualified inner calls. A wrong inference yields no edge,
  never a wrong one.

EXTRACTION_VERSION 2->3 (re-index to populate return types).

Validated on the issue repro + spdlog: node count stable (no explosion),
deterministic, and ~100 pre-existing wrong `.size()`-style edges removed.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 20:18:17 -04:00
a56d9e6941 feat(directory): CODEGRAPH_DIR env var to override the index dir name (#636) (#741)
Two environments that share one working tree — most concretely Windows
and WSL — can't safely share a single `.codegraph/`: the daemon lockfile
records a platform-specific pid + socket (named pipe vs Unix socket), and
SQLite locking across the WSL2/Windows filesystem boundary is unreliable,
so two daemons over one index risks corruption.

Add a `CODEGRAPH_DIR` env var (default `.codegraph`) that overrides the
per-project data directory name, so each environment keeps its own index
in the same tree (e.g. `CODEGRAPH_DIR=.codegraph-win` on Windows). The
name is resolved live and validated (rejects separators / `..` / absolute,
falling back to the default with a one-time stderr warning). Indexing and
file-watching now skip ANY `.codegraph-*` sibling so neither side trips
over the other's data.

Routes the previously-hardcoded `.codegraph` literals (db path, lockfile,
error log, watcher ignore, file-scan skip, installer) through the
resolver. No extraction-version bump — index content is unchanged.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 19:31:50 -04:00
07af3db6c7 feat(impact): cross-language blast-radius coverage (22 languages + 14 frameworks) (#708)
Completes the cross-file dependency graph behind impact / affected / explore across all 22 supported languages and 14 web frameworks, validated on real-world repos (measured fair-coverage table added to the README). Per-language resolution + framework resolvers/synthesizers (Lua/Luau require, Shopify OS 2.0 Liquid sections, Delphi forms, Rust cross-module + Rocket macros, Swift Fluent, SvelteKit/Nuxt loader/component conventions, RN/Expo bridges). 0 cross-family false edges, full suite green (1187 passed). See #708.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 11:02:59 -04:00
7b62356f53 feat(cli): add version, indexPath, lastIndexed to status --json (#329)
Adds `version`, `indexPath`, and an ISO `lastIndexed` to `codegraph status --json`, plus a `CodeGraph.getLastIndexedAt()` library method. `agentCount` dropped (no clear consumer). Reworked from contributor PRs #333 and #480.

Co-Authored-By: Javier Gómez <199902626+12122J@users.noreply.github.com>
Co-Authored-By: Ran <8403607+eddieran@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-02 17:50:33 -05:00
ddb1a8f72d fix: issue-triage quick wins (extraction, MCP probes, gitignore, CJK, impact) (#654)
Batch of small, localized fixes from an open-issue triage:

- .codegraph/.gitignore now ignores everything but itself, so the database,
  daemon.pid, sockets, and logs stop showing up in git status (#492, #484)
- MCP server answers resources/list and prompts/list with empty lists instead
  of -32601, clearing scary log lines in opencode/Codex (#621)
- index SAP HANA .xsjs/.xsjslib as JavaScript (#556) and TS .mts/.cts (#366)
- visit anonymous AMD/CommonJS/IIFE wrapper bodies so their inner functions and
  calls are indexed instead of coming up empty (#528)
- batch the changed-file lookup so a huge first sync no longer hits
  "too many SQL variables" (#540)
- list files with `git ls-files -z` so non-ASCII/CJK paths survive
  core.quotepath and are no longer silently skipped (#541)
- attach Go methods on generic receivers (*T[P]) to their type (#583, RC1)
- impact no longer climbs the structural `contains` edge, so a leaf symbol
  stops dragging in its sibling methods (#536)
- README: explicit `codegraph install` step, run in a new shell (#631)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-02 17:49:15 -05:00