36a311c5bb5fa1a475cfbb685a845cd2d5bf88fe
7 Commits
| Author | SHA1 | Message | Date | |
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Tom Boucher
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36a311c5bb |
enhance(#1962): harden regression tests (PBT shrinking + oracle classification + boundaries) (#2409)
* test(#1962): add failing-first repro-hardening contract tests Epic #1957 Phase 3A. Source-text-is-the-product contract tests: PBT shrinking (fast-check/Hypothesis, minimized seed, manual-minimization degradation), the four oracle types (specified/derived/metamorphic/implicit with implicit flagged weakest), boundary neighbors (off-by-one/min-max/empty-singleton tied to the equivalence class), oracle_type in DEBUG Resolution, and the Phase 1A tie-in (minimized seed + real oracle => the mutation guardrail bites). Failing-first: reference, agent cross-refs, and template field do not yet exist. * feat(#1962): harden regression tests (PBT shrinking + oracle classification + boundaries) Epic #1957 Phase 3A. Extends Minimal Reproduction (shrinking) and Test-First Debugging (oracle classification + boundary neighbors): - Shrinking: wrap an input-space failing input in a property (fast-check JS/TS, Hypothesis Python) and store the MINIMIZED counterexample as the regression seed; degrade to manual minimization when no PBT framework is present. - Oracle classification: state specified / derived (contract/model) / metamorphic / implicit (crash, weakest) before writing the assertion; record under Resolution.oracle_type; never default to implicit silently. - Boundary neighbors: off-by-one, min/max, empty/singleton around the fixed defect's equivalence class. Together they turn the regression test into a root-cause check — what the Phase 1A mutation guardrail needs to bite. Full rules extracted to gsd-core/references/ debugger-repro-hardening.md. INVENTORY + manifest + agent-size baseline + install-parity goldens + AGENTS.md + DEBUG template updated. * fix(#1962): address orthogonal review (bounding, provenance, oracle scope, sufficient-triple) - HIGH: added a 'Bound the property/shrink run' section (60s timeout, degrade- to-manual on timeout, do-not-raise-default-run-limits, argv-not-shell) — the gauntlet violation the sibling references already honored. - Medium: test-provenance caveat (the failing input often comes from the bug report — author the generator from a sanitized description, cross-ref debugger-fix-acceptance.md). - Medium: oracle scope note — the 4 types cover deterministic bugs; non- deterministic failures re-route to stability-stress per bug-taxonomy. - Medium: Phase 1A tie-in corrected — seed+oracle is necessary not sufficient; boundary neighbors close the adjacent-input escape; the sufficient triple is seed+oracle+neighbors. - Low: preserve the original noisy repro as a secondary reference; operationalize 'equivalence class' (the predicate the fix draws). Nit: degradation reworded. * chore(#1962): backfill changeset pr number (PR #2409) --------- Co-authored-by: sim <sim@local> |
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Tom Boucher
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6baa2a8182 |
feat(#1961): add bug-taxonomy classification + strategy routing to gsd-debugger (#2407)
* test(#1961): add failing-first bug-taxonomy routing contract tests Epic #1957 Phase 2B. Source-text-is-the-product contract tests (3 taxonomy classes, explicit class->technique routing table, Bohrbug->repro+SBFL+bisect, Heisenbug->record-replay/stability+SKIP-SBFL, Concurrency->atomicity/order/ deadlock checklist, bug_class in DEBUG Current Focus, supersede-not-append) plus a routing-table specification object pinning the documented decisions (SBFL forbidden on Heisenbug is the load-bearing 1B/2B seam). Failing-first: reference, Phase 1.75, and routing-table reframe do not yet exist. * feat(#1961): add bug-taxonomy classification + strategy routing to gsd-debugger Epic #1957 Phase 2B (reliability-critical). Adds Phase 1.75: classify the failure as Bohrbug / Heisenbug-Mandelbug / Concurrency, then route the investigation technique via an explicit class->technique table (Kernighan: no opaque heuristic). Bohrbug -> reproduction + SBFL (Phase 1.25) + git bisect; Heisenbug/Mandelbug -> record-replay (rr) + stability-stress + statistical sampling, with SBFL explicitly SKIPPED (a flaky spectrum poisons the Ochiai ranking — the load-bearing 1B/2B seam); Concurrency -> the atomicity/order/deadlock checklist first. Reframes (supersedes, not appends — Zawinski) the flat 'Technique Selection by situation' table into a class-routed table; the 11 techniques remain as routed targets. bug_class recorded in Current Focus (DEBUG template); common-bug- patterns catalog cross-referenced to the taxonomy. Full rules extracted to gsd-core/references/debugger-bug-taxonomy.md. INVENTORY + manifest + agent-size baseline + install-parity goldens + AGENTS.md updated. * fix(#1961): address orthogonal review (phase-name drift, General lane, revoke framing, row-scoped tests, bounding) - HIGH: reference said 'Phase 1B' (epic shorthand); corrected to the deployed 'Phase 1.25' (matches the agent + SBFL reference). - HIGH: 6 of 11 techniques (Rubber duck, Delta, Working backwards, Differential, Comment-out, Follow-the-indirection) were orphaned by the situation-table reframe. Added a 'General (any class, situation-cued)' lane to BOTH the reference routing table and the agent's Technique Selection table that re-homes them — supersede-not-append now holds. - MEDIUM: the SBFL-skip is structurally retroactive (Phase 1.25 runs before Phase 1.75 classification), so reframed the table column from 'Do NOT use' to 'Revoke if already run' + an explicit 'retroactive revocation, not proactive skip' note stating the ordering honestly. - MEDIUM: contract tests are now row-scoped (parse the table by class, assert per-row) instead of presence-only; added a guard that the previously- orphaned techniques now have a General-lane route. - LOW: pinned the canonical bug_class value form (lowercase-kebab: bohrbug|heisenbug-mandelbug|concurrency; prose may use title-case). - NIT: added a 'Bound the Heisenbug-chase runs' note (rr/stability/sampling timeouts) per the unbounded-subprocess gauntlet. * chore(#1961): backfill changeset pr number (PR #2407) |
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Tom Boucher
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f8b16d1874 |
enhance(#1960): add RCA branching (fishbone + AND-gate) to gsd-debugger (#2405)
* test(#1960): add failing-first RCA-branching contract + schema-invariant tests Epic #1957 Phase 2A. Source-text-is-the-product contract tests (fishbone >=2 categories, AND-gate, multi-cause root_cause, backward compat, reasoning checkpoint candidate_causes+and_gate fields, debugger-philosophy single-cause note, DEBUG template) plus behavioral schema-invariant checks on two fixtures: two contributing causes (AND-gate yes) -> both recorded; single-cause (AND-gate no) -> one root_cause, identical to today. Failing-first: reference, agent edits, and template note do not yet exist. * feat(#1960): add RCA branching (fishbone + AND-gate) to gsd-debugger Epic #1957 Phase 2A. Guards against 5-Whys single-cause bias: before committing root_cause, the debugger enumerates candidate causes across >=2 Ishikawa categories (code/config/environment/data) and explicitly answers an AND-gate question. When the AND-gate fires, every contributing cause is recorded, so a multi-cause fix no longer recurs via the unaddressed second cause. Resolution.root_cause may hold one OR a small set (additive; single-cause sessions are byte-identical to today). The Structured Reasoning Checkpoint gains candidate_causes + and_gate fields; debugger-philosophy.md adds the single-cause-bias trap. Full rules extracted to gsd-core/references/debugger-rca-branching.md (slim Phase 2 routing + 2 checkpoint fields kept in the agent). INVENTORY + manifest + agent-size baseline + install-parity goldens + AGENTS.md + DEBUG template updated. * fix(#1960): address orthogonal review (AND-gate self-consistency, parity guard, narrowed claim, ripples) - Reference: the collapse rule now enforces AND-gate self-consistency — and_gate=yes with a single confirmed cause is flagged as incomplete (return to Phase 3); a race/timing note clarifies such bugs bridge categories; the 'byte-identical' backward-compat claim narrowed to 'root_cause shape unchanged; reasoning_checkpoint gains 2 fields in every session'. - DEBUG.md: stale 'five-field' mirror prose -> seven-field (parallel-surface drift the reviewer flagged); new debug-session-management parity test pins the field-count claim to the gsd-debugger.md YAML keys (CRLF-safe). - Scalar-assuming consumers of set-valued root_cause updated: session-manager compact summaries (319/332), diagnose-only return (1062), archive entry (1216), ROOT CAUSE FOUND return (1322). - Test: added the AND-gate-yes/single-cause invariant + fixture; rephrased the fixture describe block honestly as a schema-invariant specification. - Phase 2 bullet phrasing clarified ('at hypothesis formation, before the Phase 4 commit'). * test(#1960): parity regex accepts word-form count ('seven-field' or '7-field') * test(#1960): parity regex counts array-valued YAML keys (no inline value) * chore(#1960): backfill changeset pr number (PR #2405) |
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Tom Boucher
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56a5c6404c |
feat(#1959): add spectrum-based fault localization (Ochiai) pre-filter to gsd-debugger (#2403)
* test(#1959): add failing-first SBFL contract + Ochiai correctness tests Epic #1957 Phase 1B. Source-text-is-the-product contract tests (Ochiai formula documented, Tarantula fallback, top-N seeding, no-coverage skip logged, ranking->Evidence, Bohrbug gating) plus a behavioral Ochiai formula-correctness section: bound [0,1], max-score invariant, a known-fault fixture proving the fault ranks #1 (criterion 2), clean degradation on zero failing tests, and two fast-check properties. Failing-first: reference file and agent routing do not yet exist. * feat(#1959): add spectrum-based fault localization (Ochiai) pre-filter to gsd-debugger Epic #1957 Phase 1B. When a runnable test suite with per-test coverage exists (>=1 failing AND >=1 passing test), the debugger computes an Ochiai suspiciousness ranking over the coverage spectrum and seeds the top-N suspicious locations into Evidence as first-class hypothesis candidates, narrowing the search space deterministically before LLM reasoning. Tarantula documented as fallback. Degrades cleanly (logged, never silent) when there is no test suite, no failing tests, or no per-test coverage, and is explicitly not trusted on flaky/Heisenbug spectra (pairs with Phase 2B bug-taxonomy). Full rules extracted to gsd-core/references/debugger-sbfl.md (slim Phase 1.25 routing kept in the agent to respect the size cap). No new coverage framework — reuses the project's existing test/coverage runner. INVENTORY + manifest + agent-size baseline + install-parity goldens + AGENTS.md updated. * test(#1959): bound property generators to valid coverage counts The [0,1] property generated failedExec independently of totalFailed, but Ochiai's score is only bounded by 1 under the coverage invariant failedExec <= totalFailed (a failing test that executed s is one of the totalFailed failing tests). Out-of-domain inputs (failedExec=100, totalFailed=5) make the formula correctly return >1. Bound failedExec by totalFailed via fc.chain so the property tests the real domain. Also cleaned up the ranking property (removed dead code). * fix(#1959): address orthogonal review (monotonicity property, degradation row, coverage bounding) - Replace vacuous ranking property (true-by-sort-construction) with a non-trivial monotonicity property: holding totalFailed + passedExec fixed, ochiai is non-decreasing in failedExec. An inverted formula would fail it. - Add the missing 'no passing tests' degradation row (preconditions require >=1 passing test; Tarantula would divide by totalPassed=0). - Bound the coverage subprocess (CLAUDE.md gauntlet): cap the coverage run, degrade-to-skip on timeout, never hang the debug session. - Reword 'discard the ranking' -> 'mark the Evidence entry as revoked (do not delete)' per Kernighan auditability. * test(#1959): bound monotonicity-property generator to valid coverage (failedExecA <= totalFailed) * chore(#1959): backfill changeset pr number (PR #2403) |
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Tom Boucher
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5e52350736 |
feat(#1958): add multi-signal fix-acceptance guardrail to gsd-debugger (#2396)
* test(#1958): add failing-first guardrail contract tests Epic #1957 Phase 1A. Adds source-text-is-the-product tests asserting the 5-signal fix-acceptance guardrail contract (target test, mutation check, no-op/deletion detector, adjacent tests, revert-and-reconfirm), graceful degradation, FIX REJECTED BY GUARDRAIL return path, per-signal debug-file recording, and subprocess bounding. Failing-first: reference file and agent sections do not yet exist. * feat(#1958): add multi-signal fix-acceptance guardrail to gsd-debugger Epic #1957 Phase 1A. Prevents accepting a fix that merely greens the test (Goodhart defense / APR overfitting). Adds a 5-signal gate run before fix acceptance: target test, mutation check (Stryker), no-op/behavior-deleting detector, adjacent/held-out tests, revert-and-reconfirm. Degrades gracefully when Stryker or a test suite is absent (each skip logged, never a silent pass), records per-signal results under Resolution.verification, and returns a FIX REJECTED BY GUARDRAIL outcome the session-manager surfaces for revise / accept-as-debt / abandon. Full rules extracted to gsd-core/references/debugger-fix-acceptance.md (slim routing kept in the agent to respect the agent-size cap). Debug template + INVENTORY + manifest + agent-size baseline + AGENTS.md updated. * test(#1958): correct newline-tolerant assertion + regen install-parity goldens The revert-and-reconfirm assertion collapsed whitespace before matching so markdown line-wrapping does not break it. Regenerated the golden-install-parity and install-tree fixtures (npm run gen:golden) to absorb the intentional gsd-debugger.md / gsd-debug-session-manager.md / DEBUG.md / new reference-file changes to the installed artifact tree. * fix(#1958): tighten guardrail per orthogonal review Addresses the isolated reviewer's findings: - signal 5 now states its recorded-repro dependency and routes the no-repro case to the degradation row; revert mechanism specified (git stash / git revert -n); minimality flag tied to diff structure, not revert-ability. - bounded-subprocesses section now bounds the git subprocess (5-30s) too, requires argv-array argument passing, and scopes Stryker to the driving regression test (a mutant killed only by a non-driving test is a finding). - new test-provenance (security) clause: the driving test must be agent-authored; bug-report repro scripts are DATA, never executed verbatim. - tightened 3 contract assertions to bind to specific clauses (guardrail_verdict field, deletion-reject-unless-RCA, 60s+git bounding). - Goodhart framing softened to 'partially-independent'; DEBUG.md template verification field notes the nested map shape. * chore(#1958): backfill changeset pr number (PR #2396) * fix(#1958): add issue ref to allow-test-rule annotation (ADR-456) CI lint-allow-test-rule-refs requires every allow-test-rule exemption to carry a 'see #NNN' issue ref per ADR-456. The new test file's annotation lacked it; this adds (see #1958). |
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Tom Boucher
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9ad2bab4be |
fix(#2297): scope resolve_model_ids:"omit" to the resolving runtime (#2332)
* fix(#2297): scope resolve_model_ids:"omit" to the resolving runtime The installer writes resolve_model_ids:"omit" for non-alias runtimes into the machine-wide ~/.gsd/defaults.json (#1156); any runtime read it back, so install order silently flipped Claude's adaptive tier aliases (executor->sonnet, planner->opus) to '' in no-project sessions. Resolution is now scoped to the runtime actually resolving, identified by a new per-install <install>/gsd-core/.gsd-runtime marker (installer writes it beside VERSION). The "omit" branch returns '' only when the PROJECT explicitly set omit (honored for all runtimes, #2517 finding #4) OR the active runtime lacks native aliases. Claude ignores a global-defaults-only omit and keeps its aliases; the active runtime is canonicalized (GSD_RUNTIME -> config.runtime -> marker -> claude) so alias/case spellings can't defeat the check; explicit project omit is workstream/project-scope aware; explicit true still materializes IDs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs(#2297): backfill PR number 2332 into changeset Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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Tom Boucher
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89b1bef881 |
refactor(#2267): golden-parity file-set snapshot + anti-staleness CI selection (#2274)
Phase 2 of golden-parity redesign (epic #2264). Adds an install file-set snapshot (golden-install-tree) and a ci-test-scope rule selecting golden-parity whenever any installed-source path changes, closing the silent-staleness hole behind the #2266 red. ADR-2264 amended (the copy/transform split premise was unsound). Closes #2267. |