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feat(safety): quarantine retracts dependent findings; dispatch steps name their facts (HYP-01, PR C) - #923
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…ction) Revision.agda (Retraction, retract-⊆, Dependent, survives-dependent, dependent-holds) and Context.agda (_⊆_, no-thinning-into-empty) are the specification for quarantine-as-retraction. The pin is the head verified on 2026-10-12, as recorded in the HYP-01 provenance table. One commit per pin. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0165rGu3tsKmJtevmrdMVyfJ
…re retracted (HYP-01) Quarantining a bot, a rule or a prover retracts an assumption. Each evidence token rests on its rule, and on its bot when it names one; a confirming re-check rests on its prover. The rule is residual-evidence-types' survives-retraction / survives-dependent (Revision.agda @ 97244f5): - a token survives iff its support thins into what remains; - a finding survives through any surviving token, or through a confirming re-check whose prover is not retracted; - a survivor keeps only its surviving tokens, and its level is re-derived from them; - a finding with nothing left moves to the retracted list, keeping its original evidence and naming what it rested on (:retracted_by). src/Hypatia/ABI/Retraction.idr transcribes the shape: Thin, Retraction, retractThin, Dependent (without Holds, which hypatia cannot state), survivesDependent, retractedSupportDies, survivor. It is gated by scripts/check-verdicts.sh: - tests/reject/RetractedSupportSurvives.idr (FalseRetraction, transcribed) is refused at `invalid`; - tests/accept/IndependentTokenSurvives.idr is accepted. A mutant that checks the survival premise against Γ instead of Δ cannot build. The citation check now covers 14 names across both pins. Hypatia.Verdict.Retraction is the runtime mirror. Quarantine.retract_dependents/1 reads the table: a bot name, or a "rule:" or "prover:" key. Soft quarantine retracts too, since a high false-positive rate is a reason to stop trusting the findings. test/retraction_test.exs (9 tests) runs the same A/B case as the Idris control, the untouched-finding negative control, and quarantine -> retract -> release -> restored through the live GenServer. Mutant (a token survives if any assumption remains) is killed. Like the rest of the safety systems, retract_dependents/1 is called by no scan or dispatch path yet: recorded as OPEN in PROOF-STATUS and CLAUDE.md Known Gap 2. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0165rGu3tsKmJtevmrdMVyfJ
…; factless steps refused (HYP-01)
Facts derive workflows, never the reverse. The dispatch manifest is the
workflow hypatia derives for dispatch-runner.sh, and every step now
carries `facts`: the pattern it acts on, that pattern's support
(`observed` with the fleet occurrence count, or `pattern`), its
evidence and the derived level.
DispatchManifest.compile/1 refuses the whole manifest if any step can
name no fact (no pattern id): {:error, {:factless_steps, steps}}, each
step named by position, tier and pattern id. write/2 then writes
nothing, so the runner never sees a step that rests on nothing.
PatternAnalyzer reports a refused manifest (path nil, zero counts, the
refused steps named) instead of crashing on a match against {:ok, _, _}.
A step's Bayesian `confidence` stays in its own field and is never a
fact.
This is the hypatia-side analogue of the Signalbox criterion (ruling
2026-10-14): no Signalbox repository exists to apply it to, so that row
stays OPEN.
`facts` is additive for dispatch-runner.sh, which reads entries by key.
write/2 takes :dispatch_dir so the tests don't race on the shared
pending.jsonl. test/dispatch_manifest_test.exs adds 3 tests, and the
mutant that never refuses is killed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0165rGu3tsKmJtevmrdMVyfJ
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📝 Summary
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| Check name | Status | Explanation |
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| Docstring Coverage |  |
Docstring coverage is 81.25% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 16 functions across 9 files. (7 skipped: 7 … |
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| Title check | |
The title clearly summarises the main changes: quarantine retraction of dependent findings and fact requirements for dispatch steps. |
| Description check | |
The description directly explains the safety, dispatch, proof, testing, and known-gap changes in the pull request. |
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A rabbit checks each token’s trail,
And marks which supports still prevail.
Facts join each dispatch line,
Empty steps stop at the sign.
Proofs and tests record the way,
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October 14, 2026 01:52
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Inline comments:
Review comments at @lib/hypatia/verdict/retraction.ex:
- Around line 88-113: Update recheck_retracted?/2 to treat a retracted prover as
lost support only when the mechanical re-check result is "confirms"; leave other
mechanical results out of retracted-support handling.
Review comments at @lib/pattern_analyzer.ex:
- Line 83: Update the flow around write_manifest/1 so the manifest is compiled
or written before calling FleetDispatcher.dispatch_routed_action/1, and skip
fleet dispatch when write_manifest/1 returns {:error, {:factless_steps, steps}}.
Dispatch routed actions only after manifest creation succeeds.
Review comments at @src/Hypatia/ABI/Retraction.idr:
- Around line 1-35: Update the transcription-source notes in the Retraction
header to agree with the citation table: either remove the dependent-holds
citation row from scripts/check-sibling-citations.sh or mark it as deliberately
omitted, since Retraction.idr has no counterpart for it.
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🔇 Additional comments: 12
src/Hypatia/ABI/Retraction.idr: 1
36-161: LGTM!tests/accept/IndependentTokenSurvives.idr: 1
1-50: LGTM!tests/reject/RetractedSupportSurvives.idr: 1
1-31: LGTM!scripts/check-sibling-citations.sh: 1
38-45: LGTM!scripts/check-verdicts.sh: 1
13-13: LGTM!Also applies to: 42-50
scripts/fetch-siblings.sh: 1
36-37: LGTM!src/abi/README.adoc: 1
38-38: LGTM!src/abi/hypatia-abi.ipkg: 1
26-26: LGTM!.claude/CLAUDE.md: 1
16-16: LGTM!Also applies to: 126-126, 178-178, 282-283
verification/PROOF-STATUS.adoc: 1
185-191: LGTM!Also applies to: 193-195, 197-201, 203-207, 209-213, 215-217, 219-224
lib/safety/quarantine.ex: 1
96-112: LGTM!test/retraction_test.exs: 1
129-168: LGTM!
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Three red checks on this PR come from the Security workflow (
I'm not re-running anything: all three fail the same way on Generated by Claude Code |
…y a confirming re-check is support (HYP-01) Addresses the CodeRabbit review on #923. - PatternAnalyzer dispatched every routed action to the fleet before the manifest was checked, so a factless step still reached the fleet when the manifest was refused. dispatch_and_write/2 now compiles the manifest first; the actions are dispatched and the manifest is written only when every step names its fact. A refusal dispatches nothing. New test, with a negative control. The mutant that dispatches before compiling is killed. - Retraction counted a quarantined prover as lost support for any mechanical re-check. A refuting re-check never supported the finding, so naming its prover in :retracted_by was false. Only a confirming re-check's prover is retracted support now. New test; the old rule fails it. - check-sibling-citations.sh marks dependent-holds as named in Retraction.idr's header as deliberately not transcribed, so the table and the header agree. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0165rGu3tsKmJtevmrdMVyfJ
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HYP-01, PR C of 3. It follows #920 (PR A) and #922 (PR B), both merged. There are three feature commits, each reviewable on its own, plus one review-fix commit.
1.
build(siblings): pin residual-evidence-types at97244f5This is a separate commit, one per pin.
Revision.agdaandContext.agdaat that pin are the specification for quarantine-as-retraction (RE-1).2.
feat(safety): quarantine is retractionQuarantining a bot, a rule (
rule:<module>/<id>) or a prover (prover:<name>) retracts an assumption. Each evidence token rests on its rule, and on its bot when it names one; a confirming re-check rests on its prover. The rule is RE-1'ssurvives-retraction/survives-dependent:retracted_by(JSON-safe wire names).src/Hypatia/ABI/Retraction.idr(%default total) transcribes the shape:Thin(Context.agda_⊆_),Retraction,retractThin(retract-⊆);Dependent, withoutHolds, which hypatia can't state as a type;survivesDependent,retractedSupportDies,survivor.It is gated by
scripts/check-verdicts.sh:tests/reject/RetractedSupportSurvives.idr(the FalseRetraction pattern, transcribed) is refused atinvalidwithMismatch between: [?x] and [].tests/accept/IndependentTokenSurvives.idris accepted.Runtime:
Hypatia.Verdict.Retraction, plusQuarantine.retracted_assumptions/0andQuarantine.retract_dependents/1. A soft quarantine retracts too, since a high false-positive rate is exactly a reason to stop trusting the findings.3.
feat(dispatch): every manifest step names its facts; factless steps are refusedYou ruled that Signalbox's thesis applies to hypatia's own derived workflow, since no Signalbox repository exists. The dispatch manifest is the workflow hypatia derives for
dispatch-runner.sh.facts: the pattern it acts on, its support (observedwith the fleet occurrence count, orpattern), its evidence, and the derived level.DispatchManifest.compile/1refuses the whole manifest if any step names no fact, andwrite/2then writes nothing.PatternAnalyzer.dispatch_and_write/2compiles the manifest before anything reaches the fleet. The routed actions are dispatched, and the manifest written, only when every step names its fact. A refusal dispatches nothing and is reported as path nil, zero counts and the steps named, rather than crashing on{:ok, _, _} =.confidencestays in its own field and is never a fact.factsis additive fordispatch-runner.sh, which reads entries by key.Review round (CodeRabbit), commit
49c9653dispatch_and_write/2compiles first. New test plus negative control; the dispatch-before-compile mutant fails itretracted_bydependent-holdscitation row vs headerGate output (local; verify-proofs runs on this PR since it targets main)
Mutants, all red:
compile/1never refuses: 1 test fails.Negative controls:
Status rows (PROOF-STATUS "Verdict support")
Retraction.idrlemmasretractThin,survivesDependent,retractedSupportDies,survivor,noTokensNoSurvivalcheck-verdicts.shlines abovetest/retraction_test.exs(10 tests, including quarantine → retract → release through the live GenServer)test/dispatch_manifest_test.exs(5 new)Known red checks that aren't this PR's
Security Status,Rust Dependency AuditandRust License & Ban Checkwere already red onmainbefore HYP-01 (scheduled runs 2902–2904 at4be38c8). Root causes and proposed patches are in this comment. This PR touches no Rust and not that workflow.🤖 Generated with Claude Code
https://claude.ai/code/session_0165rGu3tsKmJtevmrdMVyfJ