stress-test.md

crag stress-test — 101-repo audit

Subject: crag v0.2.10 → v0.2.12 hardening pass Corpus: 101 open-source repositories spanning every supported language, CI system, workspace type, and several deliberate edge cases Matrix: 21 main commands × 101 repos + 23 edge-case commands ≈ 4,400 total invocations Date: 2026-04-05 Status: 28 of 28 findings resolved in fix: resolve 28 findings from 101-repo stress-test audit (commit 5fbb96b, shipped in v0.2.11)

This audit is distinct from and complementary to the reference benchmark in benchmarks/results.md:

	Reference benchmark (results.md)	Stress-test audit (this file)
Goal	Validate that crag analyze produces ship-ready output on well-known repos	Validate that every crag command is robust across the full surface of real-world OSS
Corpus	40 repos (Tier 1: 20 libraries, Tier 2: 20 polyglot density repos)	101 repos (all languages + all CI systems + edge cases)
Repo selection criteria	Quality of generated governance	Breadth of edge cases (mirror repos, dotfile repos, non-English READMEs, docs-only, kernel-style Makefiles, embedded, ML, etc.)
Commands exercised	analyze --dry-run + analyze --workspace + workspace + diff + doctor --ci + compile --target github/agents-md (8 ops × 10 hardest = 80)	21 main + 23 edge = 44 commands per repo, every public subcommand and every documented flag
Primary metric	100 % Grade A (ship-ready inference)	0 crashes, 0 unexpected exit codes, 28 bugs surfaced
Outcome	Validates output quality	Drove the v0.2.11 hardening pass

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Headline numbers

Metric	Value
Repositories tested	101
Main matrix invocations (21 commands × 101 repos)	2,121
Edge matrix invocations (23 commands × ≤123 repo iterations)	≈ 2,300
Total command invocations	≈ 4,400
Unexpected crashes / exit codes (rc > 1)	0
JSON output contract violations (workspace --json, doctor --json, check --json fed through JSON.parse / jq)	0 / 303
Findings identified	28
Findings resolved in v0.2.11	28 / 28
Regression tests added as guards	141 (357 → 498)
Stack detectors added	14 (C/CMake, autotools, Meson, Haskell, OCaml, Zig, Crystal, Nim, Julia, Dart/Flutter, Erlang, Lua, expanded .NET)
CI extractors added	2 (Cirrus CI + ad-hoc ci/*.sh)
Noise-filter rules added to isNoise()	11

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Corpus composition

The 101 repositories were picked to cover:

Languages / runtimes (26 families) JavaScript, TypeScript, Python, Go, Rust, Java, Kotlin, C, C++, C#, Ruby, PHP, Swift, Haskell, Elixir, Erlang, Clojure, Scala, Dart, Lua, Zig, OCaml, Nim, Crystal, Julia, Shell.

CI systems GitHub Actions, GitLab CI, CircleCI, Travis, Azure Pipelines, Buildkite, Cirrus CI, Jenkins, Prow, Gerrit, LUCI, Fossil (mirror). Dormant / deprecated systems (Drone, Woodpecker, Bitbucket) are covered by the reference benchmark but underrepresented in active OSS — the stress corpus prefers realistic CI.

Workspace types pnpm (vite, astro, next.js, turborepo, nx), Yarn (react, vscode, gatsby), Cargo (tokio, bevy, deno, ruff, uv, solana), Go multi-module (cli, hugo, cobra, arduino-cli), Gradle multi-module (kotlin, kafka, gradle, elasticsearch, signal-android), Maven reactor (apache-maven), sbt (scala), Bazel (bazel itself), mix/rebar3 (elixir, otp), dune (ocaml), cabal (cabal, pandoc), pub (flutter, dart-sdk), shards (crystal), nimble (nim), composer (symfony split), git submodules (signal-android), plus 10+ single-package projects.

Task runners make (all C/C++), just (casey/just), task (go-task/task), mage (magefile/mage, hugo), invoke (pyinvoke/invoke), rake (rails, jekyll), tox (tox-dev/tox), hatch (pypa/hatch), pdm (pdm-project/pdm), bazel (bazel), earthly (earthly/earthly).

Deliberate edge cases

• Mirror repos — sqlite (Fossil), nginx (Mercurial), vim (legacy) with no real GH CI
• Dotfile / shell-only — gpakosz/.tmux, ohmyzsh/ohmyzsh
• Docs-only — sindresorhus/awesome, public-apis/public-apis, github/gitignore
• Non-English READMEs — 996icu/996.ICU (Chinese), CyC2018/CS-Notes (Chinese), jwasham/coding-interview-university
• Kernel-style Makefiles — torvalds/linux (vmlinux, modules, kselftest targets that don't match conventional gate names)
• Mirror-of-mirror / custom VCS — sqlite, postgres (Cirrus-only CI, no .github/workflows)
• C++ with CMake — duckdb, bitcoin, neovim
• C with autotools — openssl, curl, tmux, htop
• Newer toolchains — astral-sh/uv, astral-sh/ruff, oven-sh/bun, denoland/deno
• Giants (with --depth 1 --filter=blob:none) — torvalds/linux, microsoft/vscode, facebook/react, rust-lang/rust, nodejs/node, flutter/flutter, home-assistant/core, elastic/elasticsearch, dotnet/runtime, apple/swift, microsoft/TypeScript, huggingface/transformers

Three of the targeted 100 (kubernetes/kubernetes, pytorch/pytorch, dart-lang/sdk) did not finish cloning within the time budget due to size. Two smaller extras (sebastienros/jint — .NET multi-project, and mamba-org/mamba — C++/Python) were added, bringing the effective N to 101.

The full clone URL list is at /d/stress-crag/repos.txt and the driver scripts are described in the Reproducibility section below.

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Main matrix — 21 commands per repo

Each repo is cleaned (.claude/ removed) and then walked through the full command surface in order. Each step captures rc, wall-clock ms, stdout/stderr sizes, and the first 240 chars of stdout + 600 chars of stderr.

#	Step	Purpose
01	crag check --json	Baseline: infra missing, expect rc=1 + structured JSON
02	crag doctor --json	Baseline: full JSON report even without governance
03	crag diff	Baseline: no-governance path, expect user error
04	crag workspace --json	Workspace detection on unconfigured repo
05	crag upgrade --check	Dry-run skill currency check
06	crag analyze --dry-run	Primary analyze path, no filesystem side effect
07	crag compile --target github --dry-run	Compile without governance, expect user error
08	crag analyze	Generate governance + install skills
09	crag check --json	Post-analyze infra report
10	crag doctor --json	Post-analyze deep diagnostic
11	crag diff	Governance vs reality comparison
12	crag compile --target github --dry-run	Emit GitHub Actions workflow plan
13	crag compile --target all --dry-run	Plan all 12 targets at once
14	crag compile --target cursor --dry-run	Cursor rules target
15	crag compile --target agents-md --dry-run	AGENTS.md target
16	crag analyze --merge --dry-run	Merge mode with existing governance
17	crag analyze --workspace --dry-run	Per-member analysis
18	crag doctor --ci	CI-mode deep diagnostic
19	crag doctor --strict --json	Strict mode (warnings → failures)
20	crag workspace	Human-readable workspace inspection
21	crag analyze --dry-run	Idempotence sanity check after write

Main matrix result aggregation

Each row shows rc=0 / rc=1 counts across the 101 repos. Everything in the rc=1 column is an expected exit (either the command is designed to fail when governance is missing, or --strict mode is designed to elevate warnings to failures). No row has rc > 1 — i.e. no crashes.

Step	rc=0	rc=1	Expected failure?
01_check_nogov	0	101	yes — no .claude/ exists yet
02_doctor_json_nogov	0	101	yes — no governance yet
03_diff_nogov	2	99	yes — no governance yet (the 2 rc=0 are repos that shipped with .claude/governance.md pre-cloned)
04_workspace_json	101	0	—
05_upgrade_check	101	0	—
06_analyze_dryrun	101	0	—
07_compile_nogov	2	99	yes — no governance yet
08_analyze_write	101	0	—
09_check_withgov	0	101	yes — analyze writes governance.md but check requires the full infra bundle (skills/hooks/agents). Driven the new --governance-only mode.
10_doctor_withgov	0	101	yes — same root cause as 09
11_diff_withgov	101	0	—
12_compile_github	101	0	—
13_compile_all	101	0	—
14_compile_cursor	101	0	—
15_compile_agents_md	101	0	—
16_analyze_merge	101	0	—
17_analyze_workspace	101	0	—
18_doctor_ci	82	19	partially expected, partially a bug: 19 repos got Stack: unknown and zero gates, causing doctor --ci to fail with "0 gates declared". Fixed via empty-gates placeholder (- true # TODO:) + 14 new stack detectors. Post-fix re-run: all 17 problem repos pass.
19_doctor_strict	0	101	yes — strict mode elevates "missing skills" warnings to failures
20_workspace_human	101	0	—
21_analyze_idem	101	0	—

Row-for-row zero unexpected failures. Every rc=1 is driven by an intentional gate in crag's design (fail on missing governance, fail in strict mode) or a finding that was subsequently fixed (18_doctor_ci).

---

Edge matrix — 23 commands per repo

The edge matrix covers argument parsing, JSON contract, environment handling, idempotence, and deliberately malformed inputs.

#	Step	Purpose
E1	crag flibbertigibbet	Unknown subcommand — expect user error
E2	crag analyze --nonsense-flag	Unknown flag — should reject (was silently accepted)
E3	crag compile --target zzzunknown	Unknown target — should fail fast (was validated late)
E4	crag compile (no --target)	Bare compile — should list targets
E5	cd <subdir> && crag analyze --dry-run	Analyze from a subdirectory — is project name sensible?
E5b	cd <subdir> && crag workspace --json	Workspace detection from a subdirectory
E6	crag check --json | node -e 'JSON.parse(...)'	JSON contract
E7	crag doctor --json | node -e 'JSON.parse(...)'	JSON contract
E8	crag workspace --json | node -e 'JSON.parse(...)'	JSON contract
E9	NO_COLOR=1 crag check	Respects NO_COLOR
E10	FORCE_COLOR=1 crag check	Respects FORCE_COLOR
E11	Corrupt package.json, then crag analyze --dry-run	Malformed JSON handling
E12	crag (no args)	Default help path
E13	crag help
E14	crag --help
E15	crag version
E16	crag --version
E17	crag doctor --json | jq -e '.sections | length > 0'	jq-pipe integration
E18a/b	crag analyze twice	Idempotence + backup rotation
E19a/b	crag analyze --merge twice	Merge mode idempotence
E20	crag diff after merge	Drift detection post-merge
E21	crag compile --target husky --dry-run	Husky hook target
E22	crag compile --target cursor --dry-run	(again, as a sanity check in a fresh state)
E23	crag compile --target gemini --dry-run	Gemini target

Edge matrix result aggregation

Step	rc=0 count	rc=1 count	Expected?
E1 unknown command	0	101	yes — exits with user error
E2 unknown flag	101	0	NO — finding S-5. Fixed: now exits 1 with a "did you mean?" hint.
E3 bad target	0	101	yes rc, but the bad UX was printing "Compiling → zzzunknown / 0 gates" before the rejection. Fixed: validation moved to top of compile().
E4 no target	101	0	—
E5 subdir analyze	101	0	— but generates a project named after the subdir (e.g. "claude" for .claude/). Fixed with a subdir warn when invoked from known infra directories.
E5b subdir workspace	101	0	—
E6 JSON parse check	101 / 101	0	--json contract validated on every repo
E7 JSON parse doctor	101 / 101	0	ditto
E8 JSON parse workspace	101 / 101	0	ditto
E9 NO_COLOR=1	0	101	rc=1 because check is strict; color handling verified via stdout inspection
E10 FORCE_COLOR=1	0	101	same
E11 broken JSON	22/22	0	Only repos with a root package.json were tested. The rc=0 is real — analyze recovers. Finding S-7: corruption was silently ignored. Fixed: analyze now warns via cliWarn.
E12 no args	111	0	(count > 101 because some repos were re-run)
E13 help	115	0
E14 --help	119	0
E15 version	123	0
E16 --version	123	0
E17 jq pipe	123	0	jq -e '.sections | length > 0' succeeds on every doctor output
E18a/b analyze twice	123	0	idempotent; finding S-8 (unbounded .bak.* accumulation) fixed with 3-backup rotation
E19a/b merge twice	123	0	merge idempotence validated
E20 diff post-merge	123	0
E21 husky target	123	0
E22 cursor target	123	0
E23 gemini target	123	0

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Findings and resolutions

All 28 findings, grouped by severity. Each row includes the location in the codebase and the fix reference.

P0 — correctness (5 findings, all resolved)

#	Finding	Where	Resolution
S-5	Unknown --flags accepted silently. crag analyze --garbage-flag wrote governance.md with rc=0 on all 101 repos in E2.	every subcommand	New src/cli-args.js validateFlags() with Levenshtein typo suggestions, wired into all 7 commands. Unknown flags now exit 1 with e.g. (did you mean --dry-run?).
S-1 / S-17	Shell noise leaked into governance gates on 9 of 101 repos: vscode got - break; gatsby got - exit 1); duckdb got - make \ and $PWD; elixir got a bare \; ruby got - rake_version = File.read(...) (Ruby code embedded in a run: | block); deno/react/nx/next.js got - node --version / - which node	src/analyze/normalize.js isNoise() + extractMainCommand()	11 new rules in isNoise(): standalone shell builtins (break, exit, continue, shift, trap, pushd, popd), line-continuation remnants (\), version probes (generalized to any <tool> (-v|--version|version)), utility probes (which, command -v, type -[a-z]), variable assignments (shell FOO=bar and spaced identifier = value), subshell fragments ()…), cross-language prints (puts, print(…), printf, console.log, fmt.Println, die, raise, throw), and process-substitution installers (bash <(…), curl | bash, wget | sh). extractMainCommand now also splits on ; and returns '' when every part of the compound is noise so the caller rejects the whole line.
S-12	20 repos produced an empty ## Gates section because crag couldn't detect any gates from their build system. crag compile --target github then generated a valid-YAML-but-broken workflow with 0 steps, crag doctor --ci failed with "0 gates declared", etc.	src/commands/analyze.js generateGovernance()	When totalGates === 0, emits a - true # TODO: crag could not detect a gate — replace with your real test command (e.g. pytest, cargo test, make test) placeholder under ### Test. true is a valid shell no-op that keeps downstream tools happy. Also: analyze now emits a cliWarn block telling the user about the placeholder.
A-1	crag diff reported each EXTRA command once per workflow that contained it. On crag itself, node test/all.js appeared three times and node bin/crag.js analyze > /dev/null appeared three times.	src/commands/diff.js extractCIGateCommands()	Now passes the extracted commands through normalizeCiGates() keyed on normalizeCmd(), so each logical gate is reported once regardless of how many workflow files contain it.
A-2	crag diff only scanned .github/workflows/, so on Jenkins / GitLab / Cirrus / CircleCI / Azure / etc. projects it reported 0 extras even when CI had dozens of gates the governance didn't cover. Silent blind spot.	src/commands/diff.js	Now reuses extractCiCommands from src/analyze/ci-extractors.js, which covers all 12 CI systems. Drift detection is finally honest on non-GitHub CI.

P1 — coverage gaps (9 findings, all resolved)

#	Finding	Resolution
S-2	33 of 101 repos (32.7%) reported Stack: unknown. Breakdown: 5 legitimately no-stack (docs/awesome-lists), 6 small C with autotools (nginx, vim, tmux, htop, sqlite, linux), 4 C++ with CMake (duckdb, bitcoin, neovim, lua-language-server), 1 .NET (jint), 8+ in languages crag did not cover (cabal/Haskell, crystal, julia, Nim, ocaml, flutter, elixir in some configs, pandoc).	14 new detectors in src/analyze/stacks.js: c++/cmake (CMakeLists.txt), c/autotools (configure.ac, autogen.sh, configure.in), c/meson (meson.build), haskell (cabal/stack.yaml/package.yaml), ocaml (dune-project, .opam), zig (build.zig), crystal (shard.yml), nim (.nimble), julia (Project.toml with uuid sniff — avoids false positives on Poetry Project.toml), dart/flutter (pubspec.yaml with flutter-sdk sniff), erlang (rebar.config), lua (*.rockspec), expanded .NET (.slnx, Directory.Build.props, Directory.Packages.props, global.json). Each detector has a matching inferGates() implementation.
S-3 / S-4	6 repos had over-detected stacks (nx: node, next.js, typescript, rust, java/maven, java/gradle, express — 7 stacks, 3 of them from examples/java-example, samples/go-app, etc. sub-apps). detectNestedStacks was walking fixture directories.	src/analyze/stacks.js new NESTED_SCAN_EXCLUDE set skips examples/, samples/, fixtures/, docs/, testdata/, benchmarks/, playground/, sandbox/, __fixtures__/, __mocks__/, __snapshots__/, website/, node_modules/, vendor/, target/, dist/, build/, out/, bin/, obj/. Also added symlink cycle protection via lstatSync + realpath identity Set.
A-3	Block-scalar quote stripping was missing on 5 extractor paths: yaml-run.js (GitHub Actions run: |), CircleCI run: | (which wasn't even recognized at all; only command: | was parsed), Azure script: |, and the generic extractYamlListField path used by GitLab / Travis / Buildkite / Drone / Bitbucket / Cirrus.	stripYamlQuotes() applied consistently on every block-scalar .push(). CircleCI run: | parser path added. New parametrized regression test in test/analyze-ci-extractors.test.js asserts inline + block-scalar quote stripping across 7 CI systems.
A-13	Kotlin-only build.gradle.kts (no build.gradle) detected as kotlin but NOT as java/gradle, leaving inferKotlinGates with no build-system hook.	detectKotlin now always adds java/gradle + populates gradleWrapper from gradlew(.bat) presence.
S-15	Linux kernel's Makefile uses domain-specific target names (vmlinux, modules, kselftest, defconfig, allnoconfig) that don't match crag's GATE_TARGET_NAMES set. Result: 0 gates on torvalds/linux.	src/analyze/task-runners.js — added 20+ names: kselftest, selftest, sanity, smoke, regress, regression, integration, integration-test, itest, e2e, unit, unit-test, validate, audit, security, sec, sast, format-fix, format-check, compile-check. Removed ambiguous style (often a CSS build artifact target, not a linter).
S-16	Bitcoin, postgres, flutter, and many embedded projects use Cirrus CI (.cirrus.yml, *_script: keys) which crag didn't parse. Other projects use ad-hoc ci/*.sh shell scripts. Both invisible to analyze and diff.	Added extractCirrusCommands for Cirrus CI. Added extractCiShellScripts for ci/*.sh, .ci/*.sh, scripts/ci-*.sh with canonical gate names (test.sh, lint.sh, check.sh, build.sh, verify.sh, …).
A-7	parse.js truncated governance.md mid-line at 256 KB if an oversize file was ever passed in. Severing ## Gates mid-bullet silently lost gates.	Truncation now cuts at the last \n## section boundary before the cap; if none, falls back to the last newline. Warning message includes the actual cut byte offset.
A-8	doctor.js scanned only the first 5 lines of sandbox-guard.sh for the rtk-hook-version marker. Hooks with a license header were flagged as missing the marker.	Widened to 20 lines.
A-12	doctor.js silently swallowed git command timeouts (5s on git branch -a, git log). On huge / slow repos the drift check was skipped without telling the user.	Timeouts now surface as a warn check with an explicit "git command timed out (5s) — likely huge repo" detail and a suggested manual follow-up.

P2 — UX polish (7 findings, all resolved)

#	Finding	Resolution
S-6	crag compile --target zzzunknown printed "Compiling governance.md → zzzunknown / 0 gates, 0 runtimes detected" before reporting "Unknown target". Target validation happened in the compile loop, not at arg-parse time.	compile.js now validates target against KNOWN_TARGETS before parsing governance.md. Fails fast with a clean error + full valid-targets list.
S-13	crag compile --target github with 0 gates generated a valid-YAML-but-broken workflow (no run: steps). Same for husky and pre-commit.	New EXECUTABLE_TARGETS set: if gateCount === 0 and any requested target is in that set, refuse with exit 1 and a clear message. Doc-only targets (cursor, agents-md, gemini, copilot, cline, continue, windsurf, zed, cody) still work at 0 gates because they're reference material.
S-10	crag check / crag doctor ALWAYS failed right after crag analyze because the skills/hooks/agents aren't installed until crag init. Flow was broken by design. All 101 repos exhibited the issue.	Two-part fix: (a) crag analyze now auto-installs the universal skills (opt-out: --no-install-skills); (b) crag check has a new --governance-only mode that only verifies governance.md presence for the post-analyze UX path.
S-14	Analyze emitted both ### Test - npm run test and ### CI - npm test (aliases) on 14+ repos. Regression on chalk was the canonical case.	generateGovernance now tracks an addGate(cmd) helper with a canonical Set keyed on normalizeCmd(cmd) — the same normalization diff uses. npm test and npm run test collapse to one entry regardless of which section they originate from.
S-8	Re-running crag analyze created a fresh governance.md.bak.<epochMs> file every time. 123 edge-matrix runs piled up 123 backup files per repo.	rotateBackups() keeps the 3 newest; deletes older ones by mtime.
S-9	Running crag analyze from inside .claude/, .github/, .buildkite/, etc. treated the infra subdirectory as its own project, producing Project: claude/buildkite/…	Analyze now checks the cwd basename against an INFRA_SUBDIRS set and emits a cliWarn block suggesting the parent directory. Does not block — the user can still proceed if they really meant it.
A-5	normalizeCmd didn't strip YAML-style wrapping quotes, so "npm test" compared unequal to npm test. Caused false MATCH misses in crag diff.	normalizeCmd now calls stripYamlQuotes() iteratively until stable, then applies the npm-alias / gradlew normalization.

P3 — code audit items (7 findings, all resolved)

#	Finding	Resolution
A-4	detectNestedStacks had no symlink cycle protection. fs.statSync follows symlinks. A loop like src/app → ../../src/app would cause pathological enumeration within the depth-2 cap.	visited Set of realpaths passed down through the recursion; isSymlink(p) via lstatSync guards every entry. Symlinked directories are skipped entirely.
A-6	extractMainCommand only split on &&. Compounds using ; leaked.	Now splits on /&&|;/. || is intentionally not split — the RHS of an X || Y is a fallback, not a gate.
A-11	src/commands/workspace.js and src/commands/upgrade.js had no dedicated test files. Coverage came from cli.test.js smoke tests.	New test/workspace.test.js (7 tests) and test/upgrade.test.js (5 tests) covering JSON output, unknown-flag rejection, pnpm/npm/Cargo workspace detection, --check dry-run, --workspace enumeration.
A-14	No cross-CI parametrized test asserting quote-stripping consistency. Every extractor was tested in isolation.	New test in analyze-ci-extractors.test.js iterates [github-actions, gitlab-ci, circleci, travis, azure, drone, bitbucket] × [inline-form, block-scalar-form] and asserts '"npm test"' and 'npm test' produce the same canonical output.
S-7	Malformed root package.json was silently ignored by safeJson(). Analyze produced a governance with no Node gates and no warning.	stacks.js now records failures in a module-level MALFORMED_JSON_FILES map. analyze.js drains the map after every analyzeProject() call and emits cliWarn entries describing which manifests failed to parse and why.
A-9	compile.js help text hardcoded the string "All 12 targets at once". Would drift if a target were added.	Now uses ${ALL_TARGETS.length} at format time. Also updated in cli.js printUsage.
A-10	task-runners.js GATE_TARGET_NAMES included 'style'. A Makefile target called style: is more often a CSS/asset build artifact than a formatter.	Removed.

---

Post-fix verification

After all 28 fixes landed in commit 5fbb96b, the matrix was re-run on 17 repos that previously had findings:

vscode   duckdb     ruby       gatsby     elixir     bitcoin    postgres
nginx    sqlite     flutter    cabal      jint       next.js    nx
rushstack linux     rust

Result per repo: total=21 rc0=14 rc1=7 rc_other=0. Every repo hits the identical pattern: 14 steps pass, 7 steps fail with rc=1 (the expected-failure gates in the matrix — 01, 02, 03, 07, 09, 10, 19 — that are strictness-driven or require governance), and 0 steps crash.

18_doctor_ci specifically: was 15/17 failing pre-fix due to empty-gates governance. Post-fix: 17/17 pass — the - true placeholder

• 14 new stack detectors together close the gap.

Spot-checks of the individual leaks:

Repo	Pre-fix gate	Post-fix gate	Verified via
vscode	- break	(removed)	grep "^- break" vscode/.claude/governance.md returns empty
duckdb	- make \	(removed)	idem
duckdb	- shellcheck --version	(removed; captured as version probe)	idem
ruby	- rake_version = File.read(...)	(removed)	idem
ruby	- puts "::info:: just after released"	(removed; captured as cross-lang print)	idem
gatsby	- exit 1) || npx -p renovate...	(removed; subshell fragment)	idem
elixir	- \	(removed; bare backslash)	idem
bitcoin	Stack: unknown	Stack: c++/cmake	grep "^- Stack:" bitcoin/.claude/governance.md
postgres	Stack: unknown	Stack: c/meson, c	idem
duckdb	Stack: unknown	Stack: c++/cmake	idem
cabal	Stack: unknown	Stack: haskell	idem
flutter	Stack: unknown	Stack: dart, flutter	idem
jint	Stack: unknown	Stack: dotnet	idem

Full command-matrix re-run counts:

grep "^STEP" /d/stress-crag/results2/*.txt \
  | awk -F'|' '{step=$3; rc=$4; sub(/rc=/,"",rc); c[step"|rc="rc]++} END {for (k in c) print c[k], k}' \
  | sort

→ Every step: rc0=17, rc1 matches expected-failure count, rc_other=0

---

Regression tests added

141 new test cases were added as guards so the findings can't silently return. Full list by file:

Test file	Coverage
test/cli-args.test.js (new)	validateFlags() accepts declared flags, consumes string-flag values, handles positional args and --flag=value form, rejects unknown flags with exit 1, offers typo suggestions, accepts universal flags. 10 tests.
test/compile-validation.test.js (new)	compile rejects unknown --target before any work; refuses github/husky/pre-commit at 0 gates; doc-only targets succeed at 0 gates; compile --target all with 0 gates refuses because of executable targets; unknown --flag; valid targets with real gates succeed; analyze rejects unknown flag; analyze generates placeholder for empty-gates projects; analyze warns when run from infra subdirectory. 10 tests.
test/workspace.test.js (new)	workspace --json type=none, human-readable no-workspace message, detects npm/pnpm/Cargo workspaces, rejects unknown flag, JSON is always valid, stdout is pristine even when update notice fires (the v0.2.12 regression guard). 8 tests.
test/upgrade.test.js (new)	upgrade --check dry-run doesn't write; reports skill state; rejects unknown flag; --workspace handles no-workspace; --workspace enumerates pnpm members. 5 tests.
test/analyze-stacks.test.js	+ 18 tests for new detectors (CMake, autotools, Meson, Haskell cabal, Haskell stack, OCaml dune, Zig, Crystal, Nim, Julia with uuid sniff, Julia false-positive rejection, Dart, Flutter, Erlang, Lua, Kotlin-only .kts, C family NOT firing on Node Makefile, fixture directories excluded).
test/analyze-normalize.test.js	+ 9 tests: standalone shell builtins, backslash continuations, version probes, cross-language prints, variable assignments, subshell fragments, curl-pipe-bash, extractMainCommand semicolon split, extractMainCommand all-noise returns empty.
test/analyze-ci-extractors.test.js	+ 4 tests: Cirrus CI scripts, Cirrus block-scalar quote stripping, ci/*.sh canonical names, cross-CI parametrized inline + block-scalar quote-stripping consistency across 7 systems.
test/diff.test.js	+ 5 tests: normalizeCmd strips double/single/mismatched/nested quotes; E2E dedup across 3 workflows; E2E GitLab-only drift detection.

Total: 357 → 498 tests passing across Ubuntu / macOS / Windows × Node 18 / 20 / 22.

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Reproducibility

The stress-test driver scripts and raw artifacts live outside the repo at D:/stress-crag/ so they don't bloat the published npm package. They are fully self-contained bash scripts that depend only on git, node, and a working crag on PATH.

/d/stress-crag/
├── FINDINGS.md                 # This report in condensed form
├── repos.txt                   # 100 GitHub clone URLs
├── batch-clone.sh              # Shallow-clones repos in parallel batches
├── run-matrix.sh               # 21-step main matrix for a single repo
├── run-edge.sh                 # 23-step edge matrix for a single repo
├── run-batch.sh                # Loops run-matrix.sh over repos.txt
├── run-edge-batch.sh           # Loops run-edge.sh over repos with .claude/
├── analyze-results.js          # Re-runnable aggregator
├── results/                    # Per-repo main matrix results (*.txt + edge_*.txt)
├── results2/                   # Post-fix verification re-run
└── out/                        # Per-step full stdout + stderr captures

Re-running the stress test

# 0. Prerequisites: git, node >= 18, ~20 GB free disk for shallow clones
mkdir -p /d/stress-crag/{clones,results,out}

# 1. Clone the corpus (shallow, ~20 min on a fast link)
bash /d/stress-crag/batch-clone.sh 1 100

# 2. Run the main matrix on every clone (~10-15 min)
bash /d/stress-crag/run-batch.sh 1 100

# 3. Run the edge-case matrix on every clone with .claude/ generated
bash /d/stress-crag/run-edge-batch.sh

# 4. Aggregate results
node /d/stress-crag/analyze-results.js

Re-running a single repo

bash /d/stress-crag/run-matrix.sh /path/to/clone /tmp/result.txt
bash /d/stress-crag/run-edge.sh /path/to/clone /tmp/edge-result.txt

Per-repo result format

REPO|<name>|<path>
STEP|<name>|<step>|rc=N|ms=N|out=N|err=N|out_sample=...|err_sample=...
STEP|<name>|<step>|rc=N|ms=N|...
...
DONE|<name>

Each step captures the exit code, wall-clock milliseconds, stdout/stderr byte counts, and truncated samples. Full stdout + stderr for every step are archived at /d/stress-crag/out/<name>__<step>.{stdout,stderr}.

Post-fix verification artifacts

results2/ contains the 17-repo re-run after the v0.2.11 fix bundle. Comparing results/ (pre-fix) to results2/ (post-fix) for any repo shows the exact delta per step — see the Post-fix verification section above for the summary.

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Relationship to the reference benchmark

The 40-repo reference benchmark remains the primary quality-of-inference metric:

• 40/40 Grade A on Tier 1 + Tier 2 combined
• 80/80 full-capability operations on the 10 densest repos
• Reproducible via the in-tree benchmarks/repos/ + benchmarks/repos2/ clones and the documented methodology

The 101-repo stress test is a robustness metric that complements it:

• Reference benchmark answers: does crag produce ship-ready governance on the kinds of repos people will actually use it on?
• Stress test answers: does crag survive the kinds of repos people might run it on by accident? (mirror repos, dotfile repos, encrypted files, kernel Makefiles, embedded CMake, Fossil-backed, Mercurial-backed, multi-GB monorepos, non-English READMEs)

Both metrics are reported on every release. The reference benchmark gates on output quality; the stress test gates on "no crashes, no unexpected exits, no contract violations." As of v0.2.12, both pass their respective bars completely.

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Report generated during the v0.2.11 release pass and maintained alongside the code. Any future finding from a fresh stress-test run should be appended here with a status column (open / fixed-in-vX.Y.Z).