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Write the missing tests for 322 os-sdlc survivors in project, collaborator_pass, and the other small directories #1664

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opened 2026-11-09 22:13:20 +00:00 by jared · 2 comments
jared commented 2026-11-09 22:13:20 +00:00
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Problem

The second mutation pass (2026-11-09) left 322 survivors in 113 files under lib/os_sdlc/ (project/, collaborator_pass/, detector/, tracker/, boot/ outside inputs.rb, fast_gate/, dispatch/, ticket_shape/, and the top-level files). No test kills them. A survivor means a changed behavior that the suite does not see. Ruling 100 puts a unit test for lib/os_sdlc/<path>.rb at test/os_sdlc/<path>_test.rb.

Observed

The pass ran bin/os-sdlc-mutation-pass run . on main at 38b3284d0. docs/research/mutation-testing/2026-11-09-second-pass/survivors.md lists each survivor with its original and mutated text. This ticket takes the groups that survivors.md classes as missing test. Each line below gives the file, its survivor count, and the mutation kinds.

  • lib/os_sdlc/collaborator_pass/ticket_draft/approach.rb (12): condition_false 4, return_nil 4, condition_true 2, statement_removal 2
  • lib/os_sdlc/project/codebase.rb (12): condition_true 5, statement_removal 4, return_nil 2, comparison 1
  • lib/os_sdlc/boot/inputs/detector_argv.rb (8): condition_false 2, condition_true 2, return_nil 2, comparison 1, statement_removal 1
  • lib/os_sdlc/project/config/document.rb (8): condition_true 4, statement_removal 2, boolean_literal 1, return_nil 1
  • lib/os_sdlc/step_result.rb (8): return_nil 7, comparison 1
  • lib/os_sdlc/tracker/issue_source/tracker_lookup.rb (8): condition_true 4, statement_removal 3, boolean_literal 1
  • lib/os_sdlc/db.rb (7): statement_removal 4, condition_false 2, return_nil 1
  • lib/os_sdlc/project/config_command.rb (7): return_nil 2, statement_removal 2, boolean_literal 1, condition_false 1, condition_true 1
  • lib/os_sdlc/ticket_shape/fence_stack.rb (7): comparison 2, condition_true 2, condition_false 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/recipe_check/target_rules.rb (6): return_nil 3, condition_false 1, condition_true 1, statement_removal 1
  • lib/os_sdlc/project/config.rb (6): return_nil 3, condition_false 2, statement_removal 1
  • lib/os_sdlc/boot.rb (5): statement_removal 2, boolean_connector 1, condition_true 1, return_nil 1
  • lib/os_sdlc/boot/inputs/crc_argv.rb (5): condition_true 2, boolean_connector 1, boolean_literal 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/recipe_check/object_rules.rb (5): return_nil 2, condition_false 1, condition_true 1, statement_removal 1
  • lib/os_sdlc/detector/error_lineage/definitions.rb (5): boolean_connector 2, condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/dispatch/brief/facts.rb (5): condition_false 2, boolean_literal 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/handoff.rb (5): return_nil 3, condition_true 2
  • lib/os_sdlc/retired_test.rb (5): boolean_literal 1, condition_false 1, condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/ruby_file_check.rb (5): return_nil 2, boolean_literal 1, condition_false 1, statement_removal 1
  • lib/os_sdlc/tracker/backlog/ticket_fetch.rb (5): statement_removal 3, condition_true 2
  • lib/os_sdlc/violations.rb (5): return_nil 4, boolean_literal 1
  • lib/os_sdlc/agent.rb (4): condition_false 2, statement_removal 2
  • lib/os_sdlc/collaborator_pass/concept_brief.rb (4): comparison 1, condition_false 1, condition_true 1, return_nil 1
  • lib/os_sdlc/collaborator_pass/recipe_check/sharpen_rules.rb (4): arithmetic 4
  • lib/os_sdlc/collaborator_pass/shape_progress.rb (4): condition_false 2, comparison 1, statement_removal 1
  • lib/os_sdlc/detector/holders/visitor.rb (4): condition_true 3, return_nil 1
  • lib/os_sdlc/detector/reach_through/parent_answers.rb (4): boolean_connector 1, condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/detector/signal_section.rb (4): condition_false 2, return_nil 1, statement_removal 1
  • lib/os_sdlc/dispatch.rb (4): return_nil 2, condition_true 1, statement_removal 1
  • lib/os_sdlc/fast_gate/cop_check.rb (4): return_nil 2, boolean_connector 1, comparison 1
  • lib/os_sdlc/handoff_content/mutation.rb (4): boolean_connector 1, boolean_literal 1, condition_true 1, statement_removal 1
  • lib/os_sdlc/mutation_test/mutineer_runner/report/row.rb (4): boolean_connector 2, comparison 1, return_nil 1
  • lib/os_sdlc/project/config_check.rb (4): statement_removal 2, condition_false 1, condition_true 1
  • lib/os_sdlc/tracker/backlog/comments_fetch.rb (4): statement_removal 2, condition_true 1, return_nil 1
  • lib/os_sdlc/collaborator_pass/command/delta_check.rb (3): condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/recipe_check/subject_rules.rb (3): condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/recipe_check/text_rules.rb (3): boolean_connector 1, condition_true 1, return_nil 1
  • lib/os_sdlc/detector/error_lineage/lineage.rb (3): comparison 2, condition_true 1
  • lib/os_sdlc/detector/holders/class_name.rb (3): boolean_connector 2, condition_true 1
  • lib/os_sdlc/dispatch/brief/objections_digest.rb (3): condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/fast_gate/new_offense_report.rb (3): condition_false 1, condition_true 1, statement_removal 1
  • lib/os_sdlc/handoff_content.rb (3): condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/objection.rb (3): return_nil 2, boolean_literal 1
  • lib/os_sdlc/project/config_command/error_message.rb (3): condition_false 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/project/root.rb (3): condition_true 1, return_nil 1, statement_removal 1
  • lib/os_sdlc/ticket_shape/required_work/check.rb (3): condition_false 1, condition_true 1, statement_removal 1
  • lib/os_sdlc/verdict.rb (3): return_nil 3
  • lib/os_sdlc/agent/transcript_usage.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/boot/arguments.rb (2): boolean_literal 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/command/prescribe_brief.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/command/stop_check.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/concept_brief/owners.rb (2): condition_false 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/recipe.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/recipe_check.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/collaborator_pass/run_directory.rb (2): boolean_connector 1, boolean_literal 1
  • lib/os_sdlc/collaborator_pass/subcommand.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/db/mirror_tickle/commit_hook.rb (2): condition_false 1, statement_removal 1
  • lib/os_sdlc/detector/error_lineage/rows.rb (2): arithmetic 1, return_nil 1
  • lib/os_sdlc/detector/holders/site_offenses.rb (2): condition_true 2
  • lib/os_sdlc/detector/lessons.rb (2): arithmetic 1, return_nil 1
  • lib/os_sdlc/detector/reach_through/noise.rb (2): comparison 1, return_nil 1
  • lib/os_sdlc/detector/reach_through/parents.rb (2): boolean_connector 1, negation_removal 1
  • lib/os_sdlc/dispatch/brief.rb (2): boolean_literal 1, condition_false 1
  • lib/os_sdlc/dispatch/usage.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/fast_gate/rubocop.rb (2): return_nil 1, statement_removal 1
  • lib/os_sdlc/fast_gate/suite_check.rb (2): boolean_connector 1, condition_true 1
  • lib/os_sdlc/project/setup.rb (2): statement_removal 2
  • lib/os_sdlc/report/ticket_growth.rb (2): boolean_literal 1, comparison 1
  • lib/os_sdlc/suite/candidates.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/suite_output/wall_time.rb (2): comparison 1, condition_true 1
  • lib/os_sdlc/ticket_shape/section.rb (2): boolean_literal 1, return_nil 1
  • lib/os_sdlc/tracker/backlog.rb (2): boolean_literal 1, statement_removal 1
  • lib/os_sdlc/tracker/backlog/project_show.rb (2): condition_true 1, statement_removal 1
  • lib/os_sdlc/boot/argv_option.rb (1): boolean_literal 1
  • lib/os_sdlc/boot/inputs/fast_gate_argv.rb (1): boolean_connector 1
  • lib/os_sdlc/collaborator_pass/command/record_ruling.rb (1): statement_removal 1
  • lib/os_sdlc/collaborator_pass/command/ticket_body.rb (1): statement_removal 1
  • lib/os_sdlc/collaborator_pass/prescription_brief.rb (1): return_nil 1
  • lib/os_sdlc/collaborator_pass/recipe_check/delta_rules.rb (1): condition_true 1
  • lib/os_sdlc/collaborator_pass/rulings.rb (1): boolean_literal 1
  • lib/os_sdlc/collaborator_pass/source_snippet.rb (1): condition_true 1
  • lib/os_sdlc/collaborator_pass/ticket_draft/owner_sketch.rb (1): return_nil 1
  • lib/os_sdlc/collaborator_pass/ticket_draft/problem.rb (1): condition_true 1
  • lib/os_sdlc/correction_round.rb (1): return_nil 1
  • lib/os_sdlc/db/mirror_tickle.rb (1): return_nil 1
  • lib/os_sdlc/db/timestamp_stamping.rb (1): return_nil 1
  • lib/os_sdlc/detector/code_excerpt.rb (1): boolean_literal 1
  • lib/os_sdlc/detector/error_lineage.rb (1): boolean_literal 1
  • lib/os_sdlc/detector/error_lineage/method_names.rb (1): return_nil 1
  • lib/os_sdlc/detector/error_lineage/scope.rb (1): condition_false 1
  • lib/os_sdlc/detector/holders/entries.rb (1): boolean_connector 1
  • lib/os_sdlc/detector/holders/row.rb (1): boolean_literal 1
  • lib/os_sdlc/detector/holders/verdict.rb (1): comparison 1
  • lib/os_sdlc/dispatch/brief_lookup.rb (1): statement_removal 1
  • lib/os_sdlc/dispatch/subagent_start.rb (1): statement_removal 1
  • lib/os_sdlc/fast_gate/changed_files.rb (1): boolean_connector 1
  • lib/os_sdlc/fast_gate/failure_entry.rb (1): return_nil 1
  • lib/os_sdlc/fast_gate/new_offense_check.rb (1): condition_false 1
  • lib/os_sdlc/fast_gate/new_offense_report/options.rb (1): boolean_connector 1
  • lib/os_sdlc/handoff_content/malformed_error.rb (1): return_nil 1
  • lib/os_sdlc/lesson.rb (1): return_nil 1
  • lib/os_sdlc/lesson/catalog/cop_key.rb (1): boolean_connector 1
  • lib/os_sdlc/lesson/relay.rb (1): condition_false 1
  • lib/os_sdlc/mutation_test/ledger.rb (1): boolean_literal 1
  • lib/os_sdlc/mutation_test/scope.rb (1): condition_true 1
  • lib/os_sdlc/process_io/outcome.rb (1): condition_false 1
  • lib/os_sdlc/project/changes.rb (1): boolean_literal 1
  • lib/os_sdlc/project/snapshot.rb (1): condition_false 1
  • lib/os_sdlc/project/target.rb (1): condition_false 1
  • lib/os_sdlc/project/unconfigured.rb (1): return_nil 1
  • lib/os_sdlc/report/run.rb (1): return_nil 1
  • lib/os_sdlc/ticket_shape.rb (1): condition_true 1
  • lib/os_sdlc/tracker/issue_source/forgejo.rb (1): return_nil 1

Reproduce

n/a: the survivors come from a whole pass. Verify with a targeted run: bin/os-sdlc-mutation-pass run <files> --no-matrix.

Approach

For each file listed, write the missing paired test at test/os_sdlc/<lib path>_test.rb (ruling 100). The test must kill each survivor of that file. When a survivor shows dead code (a branch no caller reaches), delete the code if no caller needs it, and write no test for it. When a survivor is equivalent (the mutant has the same behavior), rule it equivalent in a comment on this ticket with the reason. Then verify with a targeted --no-matrix run over the files of this ticket. Do not run a whole pass.

Required work: none beyond the acceptance criteria.

Acceptance criteria

  1. Given a targeted --no-matrix Mutineer run on the files listed in this ticket, when the run ends, then no survivor remains except ones that this ticket rules equivalent with a reason.
  2. Given a file that has a deleted dead-code candidate, when the suite runs, then it is green and no caller of the deleted code remains.

Origin

  • Trigger: second whole-codebase mutation pass, 2026-11-09 (docs/research/mutation-testing/2026-11-09-second-pass/)
  • Improvised this session: none
  • Chain: survivors ← no paired unit test for the file ← tests were written at the pipeline level, and the unit test per file (ruling 100) was never added ← DESIGN (ruling 100)
  • Root candidate: none found; searched survivor, mutation, mutant, missing test, other
  • Where: lib/os_sdlc/ (project/, collaborator_pass/, detector/, tracker/, boot/ outside inputs.rb, fast_gate/, dispatch/, ticket_shape/, and the top-level files)
  • Session: bc5ad309-36b7-4fe5-a67f-1d90187242eb
  • Transcript: /home/jared/.claude/projects/-home-jared-dev-cc-os-plugins-os-sdlc/bc5ad309-36b7-4fe5-a67f-1d90187242eb.jsonl

VERDICT: CREATE (ticket-skeptic, 2026-11-09): no open ticket covers these survivors.

## Problem The second mutation pass (2026-11-09) left 322 survivors in 113 files under lib/os_sdlc/ (project/, collaborator_pass/, detector/, tracker/, boot/ outside inputs.rb, fast_gate/, dispatch/, ticket_shape/, and the top-level files). No test kills them. A survivor means a changed behavior that the suite does not see. Ruling 100 puts a unit test for `lib/os_sdlc/<path>.rb` at `test/os_sdlc/<path>_test.rb`. ## Observed The pass ran `bin/os-sdlc-mutation-pass run .` on main at 38b3284d0. `docs/research/mutation-testing/2026-11-09-second-pass/survivors.md` lists each survivor with its original and mutated text. This ticket takes the groups that `survivors.md` classes as `missing test`. Each line below gives the file, its survivor count, and the mutation kinds. - `lib/os_sdlc/collaborator_pass/ticket_draft/approach.rb` (12): condition_false 4, return_nil 4, condition_true 2, statement_removal 2 - `lib/os_sdlc/project/codebase.rb` (12): condition_true 5, statement_removal 4, return_nil 2, comparison 1 - `lib/os_sdlc/boot/inputs/detector_argv.rb` (8): condition_false 2, condition_true 2, return_nil 2, comparison 1, statement_removal 1 - `lib/os_sdlc/project/config/document.rb` (8): condition_true 4, statement_removal 2, boolean_literal 1, return_nil 1 - `lib/os_sdlc/step_result.rb` (8): return_nil 7, comparison 1 - `lib/os_sdlc/tracker/issue_source/tracker_lookup.rb` (8): condition_true 4, statement_removal 3, boolean_literal 1 - `lib/os_sdlc/db.rb` (7): statement_removal 4, condition_false 2, return_nil 1 - `lib/os_sdlc/project/config_command.rb` (7): return_nil 2, statement_removal 2, boolean_literal 1, condition_false 1, condition_true 1 - `lib/os_sdlc/ticket_shape/fence_stack.rb` (7): comparison 2, condition_true 2, condition_false 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/recipe_check/target_rules.rb` (6): return_nil 3, condition_false 1, condition_true 1, statement_removal 1 - `lib/os_sdlc/project/config.rb` (6): return_nil 3, condition_false 2, statement_removal 1 - `lib/os_sdlc/boot.rb` (5): statement_removal 2, boolean_connector 1, condition_true 1, return_nil 1 - `lib/os_sdlc/boot/inputs/crc_argv.rb` (5): condition_true 2, boolean_connector 1, boolean_literal 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/recipe_check/object_rules.rb` (5): return_nil 2, condition_false 1, condition_true 1, statement_removal 1 - `lib/os_sdlc/detector/error_lineage/definitions.rb` (5): boolean_connector 2, condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/dispatch/brief/facts.rb` (5): condition_false 2, boolean_literal 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/handoff.rb` (5): return_nil 3, condition_true 2 - `lib/os_sdlc/retired_test.rb` (5): boolean_literal 1, condition_false 1, condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/ruby_file_check.rb` (5): return_nil 2, boolean_literal 1, condition_false 1, statement_removal 1 - `lib/os_sdlc/tracker/backlog/ticket_fetch.rb` (5): statement_removal 3, condition_true 2 - `lib/os_sdlc/violations.rb` (5): return_nil 4, boolean_literal 1 - `lib/os_sdlc/agent.rb` (4): condition_false 2, statement_removal 2 - `lib/os_sdlc/collaborator_pass/concept_brief.rb` (4): comparison 1, condition_false 1, condition_true 1, return_nil 1 - `lib/os_sdlc/collaborator_pass/recipe_check/sharpen_rules.rb` (4): arithmetic 4 - `lib/os_sdlc/collaborator_pass/shape_progress.rb` (4): condition_false 2, comparison 1, statement_removal 1 - `lib/os_sdlc/detector/holders/visitor.rb` (4): condition_true 3, return_nil 1 - `lib/os_sdlc/detector/reach_through/parent_answers.rb` (4): boolean_connector 1, condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/detector/signal_section.rb` (4): condition_false 2, return_nil 1, statement_removal 1 - `lib/os_sdlc/dispatch.rb` (4): return_nil 2, condition_true 1, statement_removal 1 - `lib/os_sdlc/fast_gate/cop_check.rb` (4): return_nil 2, boolean_connector 1, comparison 1 - `lib/os_sdlc/handoff_content/mutation.rb` (4): boolean_connector 1, boolean_literal 1, condition_true 1, statement_removal 1 - `lib/os_sdlc/mutation_test/mutineer_runner/report/row.rb` (4): boolean_connector 2, comparison 1, return_nil 1 - `lib/os_sdlc/project/config_check.rb` (4): statement_removal 2, condition_false 1, condition_true 1 - `lib/os_sdlc/tracker/backlog/comments_fetch.rb` (4): statement_removal 2, condition_true 1, return_nil 1 - `lib/os_sdlc/collaborator_pass/command/delta_check.rb` (3): condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/recipe_check/subject_rules.rb` (3): condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/recipe_check/text_rules.rb` (3): boolean_connector 1, condition_true 1, return_nil 1 - `lib/os_sdlc/detector/error_lineage/lineage.rb` (3): comparison 2, condition_true 1 - `lib/os_sdlc/detector/holders/class_name.rb` (3): boolean_connector 2, condition_true 1 - `lib/os_sdlc/dispatch/brief/objections_digest.rb` (3): condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/fast_gate/new_offense_report.rb` (3): condition_false 1, condition_true 1, statement_removal 1 - `lib/os_sdlc/handoff_content.rb` (3): condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/objection.rb` (3): return_nil 2, boolean_literal 1 - `lib/os_sdlc/project/config_command/error_message.rb` (3): condition_false 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/project/root.rb` (3): condition_true 1, return_nil 1, statement_removal 1 - `lib/os_sdlc/ticket_shape/required_work/check.rb` (3): condition_false 1, condition_true 1, statement_removal 1 - `lib/os_sdlc/verdict.rb` (3): return_nil 3 - `lib/os_sdlc/agent/transcript_usage.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/boot/arguments.rb` (2): boolean_literal 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/command/prescribe_brief.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/command/stop_check.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/concept_brief/owners.rb` (2): condition_false 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/recipe.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/recipe_check.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/collaborator_pass/run_directory.rb` (2): boolean_connector 1, boolean_literal 1 - `lib/os_sdlc/collaborator_pass/subcommand.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/db/mirror_tickle/commit_hook.rb` (2): condition_false 1, statement_removal 1 - `lib/os_sdlc/detector/error_lineage/rows.rb` (2): arithmetic 1, return_nil 1 - `lib/os_sdlc/detector/holders/site_offenses.rb` (2): condition_true 2 - `lib/os_sdlc/detector/lessons.rb` (2): arithmetic 1, return_nil 1 - `lib/os_sdlc/detector/reach_through/noise.rb` (2): comparison 1, return_nil 1 - `lib/os_sdlc/detector/reach_through/parents.rb` (2): boolean_connector 1, negation_removal 1 - `lib/os_sdlc/dispatch/brief.rb` (2): boolean_literal 1, condition_false 1 - `lib/os_sdlc/dispatch/usage.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/fast_gate/rubocop.rb` (2): return_nil 1, statement_removal 1 - `lib/os_sdlc/fast_gate/suite_check.rb` (2): boolean_connector 1, condition_true 1 - `lib/os_sdlc/project/setup.rb` (2): statement_removal 2 - `lib/os_sdlc/report/ticket_growth.rb` (2): boolean_literal 1, comparison 1 - `lib/os_sdlc/suite/candidates.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/suite_output/wall_time.rb` (2): comparison 1, condition_true 1 - `lib/os_sdlc/ticket_shape/section.rb` (2): boolean_literal 1, return_nil 1 - `lib/os_sdlc/tracker/backlog.rb` (2): boolean_literal 1, statement_removal 1 - `lib/os_sdlc/tracker/backlog/project_show.rb` (2): condition_true 1, statement_removal 1 - `lib/os_sdlc/boot/argv_option.rb` (1): boolean_literal 1 - `lib/os_sdlc/boot/inputs/fast_gate_argv.rb` (1): boolean_connector 1 - `lib/os_sdlc/collaborator_pass/command/record_ruling.rb` (1): statement_removal 1 - `lib/os_sdlc/collaborator_pass/command/ticket_body.rb` (1): statement_removal 1 - `lib/os_sdlc/collaborator_pass/prescription_brief.rb` (1): return_nil 1 - `lib/os_sdlc/collaborator_pass/recipe_check/delta_rules.rb` (1): condition_true 1 - `lib/os_sdlc/collaborator_pass/rulings.rb` (1): boolean_literal 1 - `lib/os_sdlc/collaborator_pass/source_snippet.rb` (1): condition_true 1 - `lib/os_sdlc/collaborator_pass/ticket_draft/owner_sketch.rb` (1): return_nil 1 - `lib/os_sdlc/collaborator_pass/ticket_draft/problem.rb` (1): condition_true 1 - `lib/os_sdlc/correction_round.rb` (1): return_nil 1 - `lib/os_sdlc/db/mirror_tickle.rb` (1): return_nil 1 - `lib/os_sdlc/db/timestamp_stamping.rb` (1): return_nil 1 - `lib/os_sdlc/detector/code_excerpt.rb` (1): boolean_literal 1 - `lib/os_sdlc/detector/error_lineage.rb` (1): boolean_literal 1 - `lib/os_sdlc/detector/error_lineage/method_names.rb` (1): return_nil 1 - `lib/os_sdlc/detector/error_lineage/scope.rb` (1): condition_false 1 - `lib/os_sdlc/detector/holders/entries.rb` (1): boolean_connector 1 - `lib/os_sdlc/detector/holders/row.rb` (1): boolean_literal 1 - `lib/os_sdlc/detector/holders/verdict.rb` (1): comparison 1 - `lib/os_sdlc/dispatch/brief_lookup.rb` (1): statement_removal 1 - `lib/os_sdlc/dispatch/subagent_start.rb` (1): statement_removal 1 - `lib/os_sdlc/fast_gate/changed_files.rb` (1): boolean_connector 1 - `lib/os_sdlc/fast_gate/failure_entry.rb` (1): return_nil 1 - `lib/os_sdlc/fast_gate/new_offense_check.rb` (1): condition_false 1 - `lib/os_sdlc/fast_gate/new_offense_report/options.rb` (1): boolean_connector 1 - `lib/os_sdlc/handoff_content/malformed_error.rb` (1): return_nil 1 - `lib/os_sdlc/lesson.rb` (1): return_nil 1 - `lib/os_sdlc/lesson/catalog/cop_key.rb` (1): boolean_connector 1 - `lib/os_sdlc/lesson/relay.rb` (1): condition_false 1 - `lib/os_sdlc/mutation_test/ledger.rb` (1): boolean_literal 1 - `lib/os_sdlc/mutation_test/scope.rb` (1): condition_true 1 - `lib/os_sdlc/process_io/outcome.rb` (1): condition_false 1 - `lib/os_sdlc/project/changes.rb` (1): boolean_literal 1 - `lib/os_sdlc/project/snapshot.rb` (1): condition_false 1 - `lib/os_sdlc/project/target.rb` (1): condition_false 1 - `lib/os_sdlc/project/unconfigured.rb` (1): return_nil 1 - `lib/os_sdlc/report/run.rb` (1): return_nil 1 - `lib/os_sdlc/ticket_shape.rb` (1): condition_true 1 - `lib/os_sdlc/tracker/issue_source/forgejo.rb` (1): return_nil 1 ## Reproduce n/a: the survivors come from a whole pass. Verify with a targeted run: `bin/os-sdlc-mutation-pass run <files> --no-matrix`. ## Approach For each file listed, write the missing paired test at `test/os_sdlc/<lib path>_test.rb` (ruling 100). The test must kill each survivor of that file. When a survivor shows dead code (a branch no caller reaches), delete the code if no caller needs it, and write no test for it. When a survivor is equivalent (the mutant has the same behavior), rule it equivalent in a comment on this ticket with the reason. Then verify with a targeted `--no-matrix` run over the files of this ticket. Do not run a whole pass. Required work: none beyond the acceptance criteria. ## Acceptance criteria 1. Given a targeted `--no-matrix` Mutineer run on the files listed in this ticket, when the run ends, then no survivor remains except ones that this ticket rules equivalent with a reason. 2. Given a file that has a deleted dead-code candidate, when the suite runs, then it is green and no caller of the deleted code remains. ## Origin - Trigger: second whole-codebase mutation pass, 2026-11-09 (`docs/research/mutation-testing/2026-11-09-second-pass/`) - Improvised this session: none - Chain: survivors ← no paired unit test for the file ← tests were written at the pipeline level, and the unit test per file (ruling 100) was never added ← DESIGN (ruling 100) - Root candidate: none found; searched survivor, mutation, mutant, missing test, other - Where: lib/os_sdlc/ (project/, collaborator_pass/, detector/, tracker/, boot/ outside inputs.rb, fast_gate/, dispatch/, ticket_shape/, and the top-level files) - Session: bc5ad309-36b7-4fe5-a67f-1d90187242eb - Transcript: /home/jared/.claude/projects/-home-jared-dev-cc-os-plugins-os-sdlc/bc5ad309-36b7-4fe5-a67f-1d90187242eb.jsonl VERDICT: CREATE (ticket-skeptic, 2026-11-09): no open ticket covers these survivors.
jared commented 2026-11-09 22:36:56 +00:00
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Add from the pass 2 harness fix (e2098232): after the Boot::Commands::TABLE fix, boot/inputs.rb keeps 10 real survivors with missing tests: brief:24 x2, place_design:33 x2, subagent_start:41, subagent_stop:50 x2, ticket_growth:96, system_model_shapes:132 x2. Also lesson.rb: Lesson#after:35 return_nil survives and Lesson.from:8 times out. Confirm the 127 harness kills in boot/inputs.rb at the next whole pass.

Add from the pass 2 harness fix (e2098232): after the Boot::Commands::TABLE fix, boot/inputs.rb keeps 10 real survivors with missing tests: brief:24 x2, place_design:33 x2, subagent_start:41, subagent_stop:50 x2, ticket_growth:96, system_model_shapes:132 x2. Also lesson.rb: Lesson#after:35 return_nil survives and Lesson.from:8 times out. Confirm the 127 harness kills in boot/inputs.rb at the next whole pass.
jared commented 2026-11-11 14:07:46 +00:00
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Resolution

Done: The 106 live files (322 survivors, 16 groups) went through the survivor loop. New paired tests kill the real survivors. Ruling 107 deleted code that did no work in 9 lib files. 20 survivors are ruled equivalent in .sdlc/mutation-rulings.tsv.

Evidence: main b6c214a7d (tests, deletions, rulings) and 7cd98c79e (History row). Verify packet over all 16 groups with every killing test from pass.json: 46 survivors of 1773 before the last round; after it the 25 real survivors are killed (packet 0 of 177) and 21 harness-unreachable mutants remain. ruby test/all.rb: 4780 runs, 0 failures, 0 errors.

Follow-ups: #1691 owns the 20 dataset_module mutants and the Db.bind! freeze mutant 4ff3bd77b909 (comments posted 2026-11-11). #1683 owns the uncovered mutants. #1679 covers the brief test command that runs only the first file. No other follow-ups.

## Resolution **Done:** The 106 live files (322 survivors, 16 groups) went through the survivor loop. New paired tests kill the real survivors. Ruling 107 deleted code that did no work in 9 lib files. 20 survivors are ruled equivalent in .sdlc/mutation-rulings.tsv. **Evidence:** main b6c214a7d (tests, deletions, rulings) and 7cd98c79e (History row). Verify packet over all 16 groups with every killing test from pass.json: 46 survivors of 1773 before the last round; after it the 25 real survivors are killed (packet 0 of 177) and 21 harness-unreachable mutants remain. ruby test/all.rb: 4780 runs, 0 failures, 0 errors. **Follow-ups:** #1691 owns the 20 dataset_module mutants and the Db.bind! freeze mutant 4ff3bd77b909 (comments posted 2026-11-11). #1683 owns the uncovered mutants. #1679 covers the brief test command that runs only the first file. No other follow-ups. <!-- os-backlog kind: resolution -->
jared closed this issue 2026-11-11 14:07:46 +00:00
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