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merge(upstream): reconcile member extraction and daemon recovery through dea076fd - #397
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… and VB initializers (colbymchenry#2345) VB.NET's grammar tags each member of a `Structure` as its own `body` field, so extractAggregate's field lookup saw only the first member. SCrawler's UserMedia indexed none of its members, and a structure that opened with a nested enum indexed only the enum. Aggregates now resolve their body the way classes and enums do (resolveBody, which VB maps to the declaration itself). Objective-C, the only other struct language with that hook, is unchanged. Property bodies were never walked: the propertyTypes branch set skipChildren after extractProperty, so calls, instantiations and reads in a VB `Get`/`Set` block, `= initializer` or `As New`, and in a C# accessor body or `=> expr`, were lost. - propertyBodies() names the parts of a property that run code (VB: the whole declaration, as its methods are walked; C#: each accessor's body and an arrow value), walked with the property on the stack. The candidates-only fn-ref scan skips the walked subtrees by node id, so a function value is captured once, from the property. C# `= initializer`s stay unwalked, as C# field initializers are. - The C# kernel mirrors it (property_bodies, scan skip list). The parity suite and a new micro pass; a serilog sweep is 209/214 byte-identical with 0 diffs (5 deferred for parse errors). - VB field declarators (`= expr`, `As New T`) and Custom Event AddHandler/RemoveHandler/RaiseEvent blocks are walked as their field or event. Before/after (nodes / edges): SCrawler 9,950 -> 10,427 / 14,336 -> 15,092; staxrip 13,440 -> 13,644 / 24,120 -> 28,002, most of it its `Property X As New NumParam With {...}` settings; serilog edges 6,642 -> 6,654. All 23 removed edges are the same call sites re-resolved by VB's name-guessing resolver now that struct members are candidates: 10 wrong edges dropped, 9 correct ones now guessed wrong, 4 wrong either way. Designer -> Add/Size edge counts are unchanged. EXTRACTION_VERSION 27 -> 28. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…enry#2335) (colbymchenry#2343) A daemon keeps running the code it started with. The 1.6.1 daemon in colbymchenry#2335 outlived an upgrade, kept loading grammars from the install the upgrade removed and wrote every file it re-indexed as empty, while every session from the new install served itself in-process, read-only, because the old daemon held the writer lock. Daemons from before this change cannot notice an upgrade, so the launcher acts: - A launcher that finds a daemon of an older plain X.Y.Z release stops it the way `codegraph daemon` does (daemon.pid and the socket hello must agree; SIGTERM, SIGKILL only if it still answers) and starts one from its own install. It finds the daemon by its hello on the launcher's own socket, or by the project lock when it listens elsewhere: on Windows, daemons before colbymchenry#2278 named their pipe after the root as typed. A daemon of the same, a newer, a prerelease or an unknown version is never touched, so two installs cannot take turns stopping each other's. - The writer slot never falls free on the way. The launcher swaps writer.pid to itself (mode `handover`) before the signal, clears the old daemon's leftovers while it holds the slot, and the daemon it spawns takes the slot over (CODEGRAPH_DAEMON_HANDOVER). Sessions of the old daemon that fall back in-process find the slot held and serve reads only, instead of claiming it with the removed install's code. A daemon that does not exit gets the slot back, and a successor outwaits a racing candidate that took daemon.pid first. Validated on Windows with real npm upgrades from the published 1.6.1 and 1.6.2 to this build packed as 1.6.3, with the old session calling throughout. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
… a grammar-load failure (colbymchenry#2335, colbymchenry#2336) (colbymchenry#2346) * fix(mcp,extraction): a daemon whose install changed exits; grammar-load failures are never stored (colbymchenry#2335, colbymchenry#2336) A daemon that outlived an upgrade loaded grammars lazily from an install that no longer existed, and stored every file its watcher re-indexed as a zero-node row under the file's new content hash: no hash-based sync ever revisited those rows, and `codegraph status` called the index up to date. - The daemon checks its own package.json every 30 s (CODEGRAPH_DAEMON_INSTALL_CHECK_MS, 0 turns it off) and exits once the file is gone or carries another version, so the next session starts a daemon from the current install. - A result whose grammar failed to load (`parser_error`) is never stored: the file keeps its previous data and the next sync or index retries it, and a row an older engine stored that way is re-indexed even though its hash matches. The tag-based CFML path reports a missing grammar with the same code. - A launcher whose own install was deleted no longer crashes on the spawn error of the daemon it tried to start. - `codegraph status` and `status --json` (filesNeedingReindex, filesWithParseErrors) report indexed files whose symbols are missing although their content is current (colbymchenry#2336), and `files --json` carries each file's recorded errors. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * fix(mcp): a session whose own install changed never claims the writer lock (colbymchenry#2335) A daemon now exits once its install is upgraded or removed, and nobody holds the writer slot for a successor at that point. Its sessions run the same replaced code and serve themselves in-process the moment it goes; one that found the slot free claimed it as its writer even though its engine could not load (a real npm upgrade: "Cannot find module './sqlite-adapter'"), and so kept a daemon from the current install from starting. Such a session now falls back read-only and says to restart it. Also adds the CHANGELOG entries for the install check and grammar-load failures (colbymchenry#2335) and for the status report (colbymchenry#2336). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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WalkthroughThe pull request updates C# and VB.NET indexing, parser-failure recovery, and index-health reporting. It also changes MCP daemon version handling, replacement, and install checks, with new tests, documentation, and a cross-platform lifecycle workflow. ChangesCode indexing and health
MCP daemon lifecycle
Priority: ⬇️ Low Merge Risk: ⚪ Minimal · up to This change updates C# and VB.NET indexing, keeps existing index data when a parser fails to load, reports index health, and coordinates daemon replacement through an OS file lock. No concrete defect was found at the reviewed head. Cross-platform lifecycle CI should still pass before landing. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to Writer coordination and parser recovery improve failure containment. However, automatic daemon replacement can turn tampered workspace metadata into authority to terminate unrelated local processes. This requires control of local metadata and a responding socket; the applicable workspace permissions remain uncertain. Retained concerns
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Review comments at @site/src/content/docs/reference/mcp-server.md:
- Around line 34-36: Move the daemon lifecycle paragraph out of “The other
tools” and into the section describing the shared daemon, keeping its
replacement behavior there. Include that CODEGRAPH_DAEMON_INSTALL_CHECK_MS
controls the check interval, defaults to 30000 ms, and that 0 disables the
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.github/workflows/daemon-lifecycle.ymlCHANGELOG.mdREADME.md__tests__/csharp-property-accessors.test.ts__tests__/daemon-install-check.test.ts__tests__/daemon-older-version.test.ts__tests__/fixtures/golden/torture-multilang.dump__tests__/fixtures/older-daemon.cjs__tests__/grammar-load-failure.test.ts__tests__/status-index-health.test.ts__tests__/vbnet-member-bodies.test.tscodegraph-kernel/src/csharp/mod.rscodegraph-kernel/src/csharp/refs.rsdocs/design/csharp-kernel-port-checklist.mdsite/src/content/docs/reference/api.mdsite/src/content/docs/reference/cli.mdsite/src/content/docs/reference/languages.mdsite/src/content/docs/reference/mcp-server.mdsrc/bin/codegraph.tssrc/codegraph.tssrc/db/queries.tssrc/extraction/cfml-extractor.tssrc/extraction/extraction-version.tssrc/extraction/grammars.tssrc/extraction/index.tssrc/extraction/languages/vbnet.tssrc/extraction/tree-sitter.tssrc/mcp/daemon-registry.tssrc/mcp/daemon.tssrc/mcp/index.tssrc/mcp/project-lifecycle.tssrc/mcp/proxy.tssrc/mcp/version.tssrc/mcp/writer-lock.tssrc/types.ts
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Reconciles upstream commits 489b474, 511d86e and dea076f. C# property bodies now emit property-owned references, and VB.NET structures retain member and initializer references. A parser that cannot load no longer replaces a file's graph with empty data. The CLI reports missing symbols and recorded parse errors instead of declaring those indexes current.
The launcher replaces an older daemon only when its identity and hello confirm coordinated writer handover. Legacy daemons stay running while new sessions serve reads without auto-sync. Stop their old MCP sessions and daemon, then reconnect with the current install to migrate. A daemon exits when its installation disappears or its package release changes. Managed builds compare bare releases for installation checks and ordering; the full build identity still controls sharing.
Writer acquisition, stale cleanup, readiness, handover and release share a native OS file lock. The guard file stays in place; the OS releases its lock on process exit. A contended retirement retains a release retry, canceled if this process reacquires ownership. Readiness publication also retries contention and temporary file-sharing errors, and queued work is canceled when ownership changes. Timer errors stay local instead of terminating the MCP process. Source builds now require Rust 1.89 or newer. Regression coverage forces competing handovers, release and readiness contention, readiness I/O failure, ownership renewal, abnormal exit and legacy capability checks. Daemon lifecycle documentation has its own section and documents the installation-check interval.
The fork keeps its native-only parser, split C# walker and upstream ancestry. Landing requires a fast-forward of
fork/consolidatedto the reviewed head rather than a squash.README checks cover the upstream merge point, fork feature comparisons, parser/resolution and build-version rows, source prerequisites, and CLI/language/daemon behavior. Matching CLI, API, language and MCP documentation is updated. Quoted performance and precision results retain historical revision labels; no new performance claim is made. C# coverage and precision replay re-measurements remain pending.
Local Node 24 validation passed: native build and Clippy, TypeScript/UI build, 93 focused tests and the full suite of 586 files with 7,477 passing tests. One focused and 39 full-suite platform cases were skipped on Linux. Twelve ordering tests also passed under Bun. Eight golden fixtures passed; their diff adds only the C# property's
LookupandStorecall references. Test-floor and whitespace checks passed. Daemon lifecycle and contained-source-read CI passed on Linux, Windows and macOS for the final commit.Independent source review passed after the writer contention, legacy capability, release and readiness findings were fixed. CodeRabbit completed review with no open feedback. No further model review ran for the PR-body update because it changed no code.