fix(explore): retain local callee bodies with file pins by bompus · Pull Request #391 · bompus/codegraph

bompus · 2026-10-05T00:03:54Z

When a query names functions and pins several large files, unrelated declarations can displace local callee bodies. This change reserves source for up to sixteen local helpers across two call or callback hops, within the existing file and output budgets. Named bodies retain priority when the final size trim removes a source block.

The review follow-up admits eligible same-file helpers even when they fall beyond the first 300 gathered nodes. They join the selected file's source group before reservation and rendering. The limits and file ranking remain unchanged.

Validation: the original budget regression fails on the base and when the old final trim is restored. A separate regression fails on the prior PR head when relevance search misses the named callable and its helper lies beyond the pinned gather. Both pass with the fix. Targeted source, allocation, output-budget and README checks passed (56 tests). The full suite passed (577 files, 7,369 tests passed, 39 skipped).

The reported query returns both missing helper bodies and its named receiver/writer bodies in full, within 25,000 characters. Four Vite/Flask control answers are unchanged; prior test-source probes still pass.

Checked README's local-callee, requested-test and missing-name rows. The MCP reference, server instructions and changelog describe the same behavior. No extraction, resolution or index changes. The logic follow-up was reviewed; later edits only strengthened tests, so no further round ran.

coderabbitai · 2026-10-05T00:05:13Z

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Reviewing files that changed from the base of the PR and between e4a910a and fc5e815.

📒 Files selected for processing (2)

__tests__/explore-requested-source.test.ts
src/mcp/tools.ts

🚧 Files skipped from review as they are similar to previous changes (1)

src/mcp/tools.ts

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📝 Summary

Summary by CodeRabbit

New Features
- Exploration now prioritizes local callee source when a query names functions in pinned files, following up to two call or callback hops. It can include up to 16 helpers per file, with a 200-line limit per helper; file and output limits still apply.
- When results must be shortened, exploration better preserves the most relevant source.
Documentation
- Updated the reference guide and release notes to describe these exploration behaviors.

Walkthrough

codegraph_explore now discovers eligible local callees for named functions in pinned files. It includes and prioritizes their source within file and output budgets.

Changes

Local callee source

Layer / File(s)	Summary
Discover and include local callees `src/mcp/tools.ts`, `__tests__/explore-requested-source.test.ts`, `src/mcp/server-instructions.ts`, `site/src/content/docs/reference/mcp-server.md`	The tool follows up to two call or reference hops and selects up to 16 local helpers per file, each under 200 lines. Tests cover multi-file results, including when relevance search returns no nodes, the output limit, and `maxFiles: 1`. Instructions and reference documentation describe these limits.
Rank and fit source ranges `src/mcp/tools.ts`, `README.md`, `CHANGELOG.md`	Range records retain node IDs, and local callee ranges receive higher priority. When all remaining parts contain focus lines, the tool removes a lower-importance part. The README and changelog describe callee-source prioritization.

Priority: ⬇️ Low

Merge Risk: ⚪ Minimal · up to fc5e8

No actionable merge-blocking issue is established; the change is mergeable after normal checks.

Security Architecture Review

Security architecture risk: 🔵 Low · up to e4a91

The inspected change prioritizes additional helper bodies from already selected files without adding write or execution capabilities. No introduced security concern was established, but complete base-to-head scope and downstream compatibility coverage remain uncertain.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

inferred — The incremental disclosure surface is additional helper text from already admitted pinned files. The inspected callee-selection path does not admit neighboring files or invoke the selected functions, so it does not establish new cross-project access or execution authority.

Trust Boundaries and Controls

observed — Caller-controlled query paths are resolved against indexed project files or project-file existence checks. The inspected source-reservation read validates the path within the selected project root; new callee selection additionally requires identical file identity and existing group membership.

Resilience and Maintainability Implications

observed — Unreadable source is handled without failing allocation, and selected callee collections are request-local. The inspected change does not introduce a persistent reservation or shared graph mutation requiring rollback after an interrupted exploration request.

🚥 Pre-merge checks | ✅ 6

✅ Passed checks (6 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Suppressions Explained	✅ Passed	The PR adds no lint, type-check, or compiler suppression directive and no ignore entry. The changed lines contain source logic, tests, and documentation; no `eslint-disable`, `@ts-expect-error`, `@ts-…
User-Visible Changes Documented	✅ Passed	The pull request changes `codegraph_explore` source-selection and prioritization behavior, but it does not add, remove, or rename a CLI command or flag, an MCP tool or argument, a supported language o…
Title check	✅ Passed	The title clearly and concisely describes the main change: retaining local callee bodies when files are pinned.
Description check	✅ Passed	The description explains the behavior change, its limits, related documentation updates, and reported validation. It is directly relevant to the changeset.

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Actionable comments posted: 1

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Inline comments:
Review comments at @src/mcp/tools.ts:
- Line 6190: Update the same-file callee traversal around the `group.nodes`
membership check: do not skip an otherwise eligible callee merely because it was
absent from the initial pinned-file gather. Add each accepted callee to
`group.nodes` before later range passes use it, while preserving the existing
eligibility filters and traversal behavior.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Advanced
Run ID: 90e4ab5e-bb6e-493c-a848-e367efec2290

📥 Commits

Reviewing files that changed from the base of the PR and between 66878d7 and e4a910a.

📒 Files selected for processing (6)

CHANGELOG.md
README.md
__tests__/explore-requested-source.test.ts
site/src/content/docs/reference/mcp-server.md
src/mcp/server-instructions.ts
src/mcp/tools.ts

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bompus · 2026-10-05T01:41:46Z

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coderabbitai · 2026-10-05T01:50:31Z

⚠️ Action not completed

Pull request is closed.

fix(explore): retain local callee bodies with file pins

e4a910a

coderabbitai Bot reviewed Oct 5, 2026

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Comment thread src/mcp/tools.ts Outdated

fix(explore): admit local callees beyond the pinned gather

fc5e815

bompus merged commit 3a6272b into fork/consolidated Oct 5, 2026
1 check passed

bompus deleted the feat/explore-named-callees branch October 5, 2026 01:50

bompus mentioned this pull request Oct 6, 2026

fix(explore): report bounded requested-source exclusions #407

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fix(explore): retain local callee bodies with file pins - #391

fix(explore): retain local callee bodies with file pins#391
bompus merged 2 commits into
fork/consolidatedfrom
feat/explore-named-callees

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