feat(graph): upgrade the code graph engine to 0.10.5 and report trace… - #144
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… evidence Engine 0.9.0 could not resolve imports when a package directory sat below the repository root, which is MARM's own layout. `marm_graph_trace` answered "who calls this" with an empty list for functions that had callers, and an empty list is indistinguishable from "nothing calls this". On a 982,240-line tree it resolved 0 of 12 cross-module probes and was missing 131,550 edges, 27% of the graph. On 0.10.5 the same tree resolves 12 of 12 and 486,738 edges. This could not be a pin bump. 0.10.5 changed its default response encoding from JSON to grouped text and returns result sets as separate column and row lists, and nothing raises on either. The graph tools would have quietly started returning one blob of prose per call, and concept-to-code linking would have stopped finding anything without logging an error. - Pass `format: "json"` on the five affected upstream calls and convert the changed shapes back in the router, so every graph tool returns what it did before. `search_code` and `get_architecture` accept `format` without publishing it in their input schemas. - Request every architecture aspect explicitly. 0.10.5 answers with a summary by default, which silently dropped routes, hotspots, boundaries, layers, clusters and the file tree. - Add `include_tests` and `include_evidence` to `GraphTraceRequest` and to both STDIO wrappers, which declare their own signatures. Evidence is on by default, so each hop reports how it resolved (`lsp`, `language_rule`, `heuristic`, `unresolved`) with a confidence score. - Record `check_index_coverage` as a known extra upstream tool rather than a required one. Requiring a tool MARM never calls would let a later upstream rename refuse to start the server. - Point the test suite's engine sandbox at a directory 0.10.5 accepts. From this release the engine refuses to start when its cache path or working directory grants write access to an untrusted account. Cold index time on that tree roughly doubles, 18.3s to 38.8s. That is resolution work 0.9.0 skipped, not a regression. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThe server upgrades Codebase Memory MCP compatibility to 0.10.5, normalizes updated responses, adds trace filtering and evidence options, revises schema validation and test sandboxes, and updates release metadata to version 2.39.0. ChangesEngine compatibility and release
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to Age-based cleanup can delete a still-active graph-engine sandbox, causing test failures or loss of indexed data. Merge should wait for lease/lock-based cleanup and a regression test, or explicit owner acceptance of this risk. 🚥 Pre-merge checks | ✅ 2✅ Passed checks (2 passed)
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| "packaging>=24.0,<27.0", | ||
| "mcp>=1.26.0,<2.0.0", | ||
| "codebase-memory-mcp==0.9.0", | ||
| "codebase-memory-mcp==0.10.5", |
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The Glama release still installs codebase-memory-mcp==0.9.0 from requirements-glama.txt, after which Dockerfile.glama installs this package with --no-deps; consequently that published image spawns 0.9.0 even though the router now sends 0.10.5-specific formatting and trace-evidence arguments, so it misses the resolver fix and cannot provide the response contract advertised by 2.39.0. requirements.txt, used by both validation workflows, is stale in the same way and causes the release tests to exercise the wrong dependency. Update both requirement files alongside this pin.
AGENTS.md reference: AGENTS.md:L15-L15
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| [project] | ||
| name = "marm-mcp-server" | ||
| version = "2.38.0" | ||
| version = "2.39.0" |
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This bumps the runtime to 2.39.0, but docs/INSTALL-LINUX.md:316 and docs/INSTALL-WINDOWS.md:290 still tell users that the expected /health response reports 2.38.0. Anyone following either installation guide will therefore see a response that disagrees with the documented verification result; update those version examples as part of the release bump.
AGENTS.md reference: AGENTS.md:L47-L55
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In `@marm-mcp-server/marm_graph/core/tool_router.py`:
- Around line 206-215: Update _converted_code_search so cols and rows are
removed only when _is_columnar(res) is true, preserving the original fields for
half-columnar replies. Keep the existing results conversion and nested
raw_matches handling unchanged.
In `@marm-mcp-server/tests/conftest.py`:
- Around line 69-71: Update the sandbox creation logic in the fixture around
sandbox to allocate a collision-resistant unique directory beneath marm-tests,
rather than deriving the name only from os.getpid(). Ensure allocation fails or
selects another name when a directory already exists, preventing stale contents
from being reused.
- Around line 66-68: Update the temporary home/profile setup around the
LOCALAPPDATA lookup in the pytest fixture to reject the pytest-generated
directory when LOCALAPPDATA is unavailable. Instead, use a trusted owner-private
profile directory, or raise a clear unsupported-environment error before
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marm-mcp-server/tests/test_graph_tool_router.py
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🔇 Additional comments (23)
CHANGELOG.md (1)
3-34: LGTM!README.md (1)
872-872: LGTM!THIRD_PARTY_NOTICES.md (1)
10-10: LGTM!marm-mcp-server/Dockerfile (1)
76-76: LGTM!marm-mcp-server/docker-compose.yml (1)
8-8: LGTM!Also applies to: 21-21
marm-mcp-server/marm_mcp_server/__init__.py (1)
17-22: LGTM!marm-mcp-server/marm_mcp_server/config/settings.py (1)
215-215: LGTM!marm-mcp-server/marm_mcp_server/server.py (1)
8-8: LGTM!marm-mcp-server/pyproject.toml (1)
7-7: LGTM!Also applies to: 45-45
marm-mcp-server/server.json (1)
6-6: LGTM!Also applies to: 20-25
marm-mcp-server/marm_graph/config/settings.py (1)
14-16: LGTM!marm-mcp-server/marm_graph/core/backend.py (1)
45-51: LGTM!Also applies to: 85-96
marm-mcp-server/marm_graph/core/tool_router.py (2)
42-50: LGTM!Also applies to: 105-114, 132-159, 162-194, 197-204, 218-232, 235-252, 518-519, 528-529, 541-555, 568-576, 598-602
107-111: 🚀 Performance & ScalabilityKeep
aspects=["all"]; upstream excludescyclesfrom"all".> Likely an incorrect or invalid review comment.marm-mcp-server/tests/test_graph_tool_router.py (1)
70-156: LGTM!Also applies to: 159-191, 194-280, 283-304, 362-398, 400-446, 449-464
marm-mcp-server/tests/test_graph_cbm_client.py (1)
11-14: LGTM!Also applies to: 229-240, 385-438
marm-mcp-server/marm_graph/core/models.py (1)
88-97: LGTM!marm-mcp-server/marm_graph/server_stdio.py (1)
117-129: LGTM!Also applies to: 139-140
marm-mcp-server/marm_mcp_server/services/stdio_graph_tools.py (1)
182-183: LGTM!Also applies to: 201-204, 219-220
marm-mcp-server/tests/test_stdio_transport.py (1)
1373-1381: LGTM!Also applies to: 1384-1411, 1414-1425, 1428-1472
marm-mcp-server/tests/conftest.py (3)
5-5: LGTM!
54-65: LGTM!
85-85: LGTM!
…sandbox PR #144 review. The pin bump reached pyproject.toml but not the two requirement files that actually decide what gets installed, so the release would have shipped without the resolver fix it is named for. - Bump `codebase-memory-mcp` to 0.10.5 in `requirements.txt` and `requirements-glama.txt`. `Dockerfile.glama` installs the latter and then the package with `--no-deps`, and both CI workflows install the former before `pip install -e . --no-deps`, so pyproject's pin is never resolved on either path. The published Glama image would have run 0.9.0 against a router built for 0.10.5, and the release tests would have validated the wrong engine. - Add two static tests asserting the engine pin agrees across all three files and matches `PINNED_CBM_VERSION`, since nothing previously connected them. - `_converted_code_search` no longer strips `cols`/`rows` before knowing it will replace them, so a reply carrying one without the other keeps its data instead of losing both the original keys and `results`. - Give each test run a unique engine sandbox instead of one named after the PID, which a killed run left behind for the next process with that PID to inherit, and sweep sandboxes older than six hours on startup. Teardown alone cannot do this: the engine holds lock files under its home, and 14 sandboxes had already accumulated locally. - Never fall back to pytest's temp tree for the engine's home on Windows. That is the location the 0.10.5 identity check rejects, so the fallback would have turned a missing environment variable into every real-engine test failing at startup. - Update the documented `/health` version in the Linux and Windows install guides and the AGENTS.md stats label, all of which still read 2.38.0. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Inline comments:
In `@marm-mcp-server/tests/conftest.py`:
- Around line 84-101: Update _sweep_stale_sandboxes to use an exclusive
per-sandbox lease or lock and remove a directory only when that lease is
demonstrably stale, rather than relying on the root mtime alone. Ensure
concurrent or long-running sessions retain their sandboxes, and add a regression
test covering an active sandbox older than _STALE_SANDBOX_AGE_SECONDS.
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Comments are minimal and only explain non-obvious "why". Never add comments that narrate what the next line does.
Keep orchestration in the current owner file; extract modules only at real boundaries (see existingendpoints/split for the pattern).
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Every new MARM Console API route needs at least one happy-path FastAPI response-contract test with the MCP adapter stubbed.
No existence-check or coded-to-pass tests. Deep tests that exercise real paths beat broad shallow coverage.
pytest.mark.skiponly for genuinely unavailable dependencies (for example, an unavailable embedding model), never for effort.
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🧠 Learnings (1)
📚 Learning: 2026-07-31T08:30:32.056Z
Learnt from: Lyellr88
Repo: Lyellr88/marm-memory PR: 125
File: docs/INSTALL-LINUX.md:323-323
Timestamp: 2026-07-31T08:30:32.056Z
Learning: In the Linux and Windows installation documentation, treat http://localhost:8001 as the primary MARM MCP Server endpoint. Do not validate its response contract against the standalone marm-mcp-server/marm_graph/server.py health route, because marm-graph is embedded in the primary marm_mcp_server service.
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marm-mcp-server/tests/conftest.py (1)
7-8: LGTM!Also applies to: 68-81, 117-117, 127-131
marm-mcp-server/requirements-glama.txt (1)
13-13: LGTM!marm-mcp-server/requirements.txt (1)
14-14: LGTM!AGENTS.md (1)
81-81: LGTM!docs/INSTALL-LINUX.md (1)
316-316: LGTM!docs/INSTALL-WINDOWS.md (1)
290-290: LGTM!marm-mcp-server/tests/test_docker_static_config.py (1)
188-208: LGTM!Also applies to: 210-221, 224-228
…ectory mtime PR #144 second review pass. The engine writes into `<sandbox>/.cache/codebase-memory-mcp`, and a write that deep does not update the sandbox directory's own mtime, so the directory reports "untouched since creation" for a whole session. A session outliving the six-hour cutoff would therefore have its home swept by a concurrently starting session, and with `ignore_errors=True` that is a partial deletion rather than a clean failure. Staleness now reads the newest mtime anywhere in the sandbox. A run that is still writing keeps its own home however long it has been going. Adds `tests/test_engine_sandbox.py` covering the sweep, including the case the directory mtime alone gets wrong: an active sandbox whose directory is older than the cutoff. That test fails against the previous implementation. Rejected the reviewer's suggested per-sandbox lease with exclusive locking. It needs platform-specific locking and lease-staleness handling inside a test fixture, which is more machinery than the residual risk justifies: what remains uncovered is a live session that performed no engine activity for six hours, and no test run does that. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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v2.39.0: Code Graph Engine 0.10.5 and Trace Evidence
marm_graph_tracenow answers "who calls this" correctly on repositories whose package directory sits below the repository root, which is one of the most common Python layouts and MARM's own. Every trace result also reports how each edge was resolved, so a resolved reference is distinguishable from a name-match guess.include_evidenceis on by default and adds a per-hopstrategy(lsp,language_rule,heuristic,unresolved) and confidence score.include_testsis off by default, matching the engine, and adds callers in test files. Both are available over HTTP and STDIO.Upgrade Note
Existing graphs keep the old engine's incomplete edges until something re-indexes them. Automatic indexing handles this on its own, because watch state is not persisted and the first poll after the restart this upgrade requires re-indexes every watched project within 30 seconds. If you have turned automatic graph indexing off, run
marm_graph_indexonce by hand, or traces will keep answering from stale edges with no indication that they are stale.Engine 0.10.5 also refuses to start when either its cache directory or the directory MARM was launched from grants write access to another account, reporting that the executable's identity could not be verified. The default cache location is fine, but the launch directory counts too: starting MARM from a shared or world-writable directory is enough to trigger it. Graph tools then report the backend as unavailable while memory, logging, and recall keep working. Docker is unaffected, since the engine's cache is owned by the unprivileged user the image runs as.
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