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os-sdlc: whole-codebase mutation pass (mutation testing increment 4) #1636

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opened 2026-11-08 15:24:34 +00:00 by jared · 2 comments

jared commented

2026-11-08 15:24:34 +00:00

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Problem

The per-ticket gate sees only changed lines. Blind tests and redundant tests need a whole-codebase run. The plan rules the blind filters and the one-at-a-time redundant loop. This ticket needs increments 1 to 3.

Reproduce

n/a: feature ticket.

Approach

Source: docs/research/mutation-testing/plan-v1-2026-11-08.md, table "Increments, in order", row 4. The section "Rulings" is binding; do not re-decide it. Decompose against the plan before implementation.

Origin

Trigger: plan docs/research/mutation-testing/plan-v1-2026-11-08.md (commit b90d8253), ruled by Jared 2026-11-07 and 2026-11-08
Improvised this session: none
Chain: suite doubled in six weeks (757 test files, 3,572 test methods) ← suspected duplicated behavior and tests with no demonstrated value ← no mutation evidence in the gate. End: DESIGN (docs/research/mutation-testing/plan-v1-2026-11-08.md)
Root candidate: none found; searched mutation, mutineer, mutant, survivor, taxonomy, redundant test, blind test, duplicate, overlap, ledger
Where: plugins/os-sdlc (whole-codebase pass)
Session: ff703e34-8046-4b24-af68-6ef76d8aa338
Transcript: /home/jared/.claude/projects/-home-jared-dev-cc-os-plugins-os-sdlc/ff703e34-8046-4b24-af68-6ef76d8aa338.jsonl

VERDICT: CREATE

## Problem The per-ticket gate sees only changed lines. Blind tests and redundant tests need a whole-codebase run. The plan rules the blind filters and the one-at-a-time redundant loop. This ticket needs increments 1 to 3. ## Reproduce n/a: feature ticket. ## Approach Source: `docs/research/mutation-testing/plan-v1-2026-11-08.md`, table "Increments, in order", row 4. The section "Rulings" is binding; do not re-decide it. Decompose against the plan before implementation. ## Origin - Trigger: plan `docs/research/mutation-testing/plan-v1-2026-11-08.md` (commit b90d8253), ruled by Jared 2026-11-07 and 2026-11-08 - Improvised this session: none - Chain: suite doubled in six weeks (757 test files, 3,572 test methods) ← suspected duplicated behavior and tests with no demonstrated value ← no mutation evidence in the gate. End: DESIGN (`docs/research/mutation-testing/plan-v1-2026-11-08.md`) - Root candidate: none found; searched mutation, mutineer, mutant, survivor, taxonomy, redundant test, blind test, duplicate, overlap, ledger - Where: plugins/os-sdlc (whole-codebase pass) - Session: ff703e34-8046-4b24-af68-6ef76d8aa338 - Transcript: /home/jared/.claude/projects/-home-jared-dev-cc-os-plugins-os-sdlc/ff703e34-8046-4b24-af68-6ef76d8aa338.jsonl VERDICT: CREATE

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2026-11-08 15:24:34 +00:00

jared changed title from ~~os-sdlc: mutation ruling ledger (mutation testing increment 3)~~ to os-sdlc: whole-codebase mutation pass (mutation testing increment 4)

2026-11-08 15:24:54 +00:00

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2026-11-08 15:25:02 +00:00

jared commented

2026-11-08 15:25:02 +00:00

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Blocked on #1638 (increment 1, survivor gate), #1634 (increment 2, taxonomy classifier), and #1635 (increment 3, ruling ledger). Plan: docs/research/mutation-testing/plan-v1-2026-11-08.md, row 4.

jared referenced this issue

2026-11-08 15:25:04 +00:00

os-sdlc: mutation overlap report (mutation testing increment 5) #1637

jared referenced this issue

2026-11-08 17:53:48 +00:00

os-sdlc: test taxonomy classifier (mutation testing increment 2) #1634

jared referenced this issue

2026-11-08 17:56:42 +00:00

Takedown relevance judge rejects ruled feature tickets as not relevant #1642

jared referenced this issue

2026-11-08 18:07:27 +00:00

os-sdlc: test taxonomy classifier (mutation testing increment 2) #1634

jared referenced this issue

2026-11-08 19:15:13 +00:00

os-backlog CLI has no label-add or label-remove command #867

jared commented

2026-11-08 20:49:13 +00:00

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Owner

Resolution

Done: MutationTest::Pass plans the whole-codebase Mutineer matrix run, reads the matrix, applies the three blind filters and the ledger, orders redundant candidates by kills, and checks one removal against a baseline; CLI os-sdlc-mutation-pass plan|report|removal-check.

Evidence: commit 0910331d on main; suite 3604 runs 0 failures; rubocop clean on 20 files; history row in docs/implementation-status/os-sdlc.md

Follow-ups: none; the first live whole-codebase run is a use of the tool, not a build step

## Resolution **Done:** MutationTest::Pass plans the whole-codebase Mutineer matrix run, reads the matrix, applies the three blind filters and the ledger, orders redundant candidates by kills, and checks one removal against a baseline; CLI os-sdlc-mutation-pass plan|report|removal-check. **Evidence:** commit 0910331d on main; suite 3604 runs 0 failures; rubocop clean on 20 files; history row in docs/implementation-status/os-sdlc.md **Follow-ups:** none; the first live whole-codebase run is a use of the tool, not a build step

jared closed this issue

2026-11-08 20:49:13 +00:00

jared referenced this issue from a commit

2026-11-08 20:57:21 +00:00

feat(os-sdlc): whole-codebase mutation pass plans the run and filters blind and redundant candidates (#1636)

jared referenced this issue from a commit

2026-11-08 20:57:21 +00:00

docs(os-sdlc): history row for #1636 whole-codebase pass

jared referenced this issue

2026-11-11 23:11:26 +00:00

Make mutation-pass packet use the tier-2 operators of the whole pass #1700