Apply upstream commit 1572d90d7174f0c65019e768c8f65728fae668c5 from
PR #1570 by @rongbc.
Clarify that suggested explore call counts are advisory and extra calls
remain available. Sync the MCP initialization guidance and eval probe,
retain the upstream regression tests, close the footer's bold formatting,
and credit the fix under Unreleased in the changelog.
Validation: npm run build; focused Vitest (3 files, 53 tests); source and
dist wording greps; git diff --check.
Fixes#1504
Co-authored-by: Colby McHenry <colbymchenry@users.noreply.github.com>
Claude Code defers every MCP tool behind ToolSearch by default, so a fresh session sees only the tool name until the model searches for it. The explore tool now carries `_meta: { "anthropic/alwaysLoad": true }`, which exempts it on existing installs, and the Claude Code installer target writes `alwaysLoad: true` on the server entry (re-running install adds the key to an older entry). Copilot CLI tool search holds MCP tools back the same way once ~30 tools are connected, so its entry carries `deferTools: "never"`.
All codegraph_* tools are query-only — they read the pre-built index and
never mutate the workspace — but they advertised no MCP annotations, so
Cursor's Ask mode (and any client that gates on read-only tools) blocked
every call with "you are in ask mode and cannot run non read-only tools."
Add a shared READ_ONLY_ANNOTATIONS constant (readOnlyHint: true,
destructiveHint: false, idempotentHint: true, openWorldHint: false) and
reference it from each of the 8 tool definitions. The field flows through
every tools/list path: the live getTools() (including explore's
spread-rewritten description), the static proxy getStaticTools(), and the
no-default withRequiredProjectPath schema clone.
The annotations field is additive, so it ships without bumping the
negotiated 2024-11-05 protocol version: clients that gate on it read it
regardless, and older clients ignore it.
Closes#1018
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Aaron Queen
