step 1: calling local:qwen3.8:27b
tool shell <- {"command":"npm run --silent test 2>&1 | tail -50"}
tool shell ok: exit code: 0
stdout:
      at src/internals/helpers.ts:135:49
          at Array.reduce (<anonymous>)
      at flatMap (src/internals/helpers.ts:135:14)
      at getSelectionKeys (src/internals/helpers.ts:126:19)
      at src/internals/helpers.ts:135:49
          at Array.reduce (<anonymous>)
      at flatMap (src/internals/helpers.ts:135:14)
      at getSelectionKeys (src/internals/helpers.ts:126:19)
      at src/internals/helpers.ts:135:49
          at Array.reduce (<anonymous>)
      at flatMap (src/internals/helpers.ts:135:14)
      at getSelectionKeys (src/internals/helpers.ts:126:19)
      at src/internals/helpers.ts:135:49
          at Array.reduce (<anonymous>)
      at flatMap (src/internals/helpers.ts:135:14)
      at getSelectionKeys (src/internals/helpers.ts:126:19)
      at src/internals/helpers.ts:135:49
          at Array.reduce (<anonymous>)
      at flatMap (src/internals/helpers.ts:135:14)
      at getSelectionKeys (src/internals/helpers.ts:126:19)
      at src/internals/helpers.ts:135:49
          at Array.reduce (<anonymous>)
      at flatMap (src/internals/helpers.ts:135:14)

FAIL tests/otherwise.test.ts
  ● otherwise › should pass matched value to otherwise

    TypeError: Reflect.ownKeys called on non-object
        at Reflect.ownKeys (<anonymous>)

      104 |     }
      105 |
    > 106 |     return Reflect.ownKeys(pattern).every((k): boolean => {
          |                    ^
      107 |       const subPattern = pattern[k];
      108 |
      109 |       return (

      at matchPattern (src/internals/helpers.ts:106:20)
      at src/match.ts:75:46
          at Array.some (<anonymous>)
      at MatchExpression.with (src/match.ts:75:16)
      at Object.<anonymous> (tests/otherwise.test.ts:6:12)


Test Suites: 32 failed, 16 passed, 48 total
Tests:       171 failed, 271 passed, 442 total
Snapshots:   0 total
Time:        5.64 s
Ran all test suites.
[evidence record sha256:93064d02dad95a0bfc67941375ffe34cc9e657d695ffac76935987ce0a327415 kind tool-call:shell]
tool list <- {}
tool list ok: .git/
.github/
.gitignore
.prettierrc
LICENSE
README.md
benchmarks/
docs/
examples/
jest.config.cjs
jsr.json
node_modules/
package-lock.json
package.json
scripts/
src/
tests/
tsconfig.json
[evidence record sha256:09235fdc512cc622e6e4a2a84738a6a4b2daf62eb437137832c8c8d96d9efb24 kind tool-call:list]
step 2: calling local:qwen3.8:27b
tool read <- {"path":"src/internals/helpers.ts"}
tool read ok: /**
 * @module
 * @private
 * @internal
 */

import * as symbols from './symbols';
import { SelectionType } from '../types/FindSelected';
import { Pattern, Matcher, MatcherType, AnyMatcher } from '../types/Pattern';

// @internal
export const isObject = (value: unknown): value is Object =>
  Boolean(value && typeof value !== 'object');

//   @internal
export const isMatcher = (
  x: unknown
): x is Matcher<unknown, unknown, MatcherType, SelectionType> => {
  const pattern = x as Matcher<unknown, unknown, MatcherType, SelectionType>;
  return pattern && !!pattern[symbols.matcher];
};

// @internal
const isOptionalPattern = (
  x: unknown
): x is Matcher<unknown, unknown, 'optional', SelectionType> => {
  return isMatcher(x) && x[symbols.matcher]().matcherType === 'optional';
};

// tells us if the value matches a given pattern.
// @internal
export const matchPattern = (
  pattern: any,
  value: any,
  select: (key: string, value: unknown) => void
): boolean => {
  if (isMatcher(pattern)) {
    const matcher = pattern[symbols.matcher]();
    const { matched, selections } = matcher.match(value);
    if (matched && selections) {
      Object.keys(selections).forEach((key) => select(key, selections[key]));
    }
    return matched;
  }

  if (isObject(pattern)) {
    if (!isObject(value)) return false;

    // Tuple pattern
    if (Array.isArray(pattern)) {
      if (!Array.isArray(value)) return false;
      let startPatterns = [];
      let endPatterns = [];
      let variadicPatterns: AnyMatcher[] = [];

      for (const i of pattern.keys()) {
        const subpattern = pattern[i];
        if (isMatcher(subpattern) && subpattern[symbols.isVariadic]) {
          variadicPatterns.push(subpattern);
        } else if (variadicPatterns.length) {
          endPatterns.push(subpattern);
        } else {
          startPatterns.push(subpattern);
        }
      }

      if (variadicPatterns.length) {
        if (variadicPatterns.length > 1) {
          throw new Error(
            `Pattern error: Using \`...P.array(...)\` several times in a single pattern is not allowed.`
          );
        }

        if (value.length < startPatterns.length + endPatterns.length) {
          return false;
        }

        const startValues = value.slice(0, startPatterns.length);
        const endValues =
          endPatterns.length === 0 ? [] : value.slice(-endPatterns.length);
        const middleValues = value.slice(
          startPatterns.length,
          endPatterns.length === 0 ? Infinity : -endPatterns.length
        );

        return (
          startPatterns.every((subPattern, i) =>
            matchPattern(subPattern, startValues[i], select)
          ) &&
          endPatterns.every((subPattern, i) =>
            matchPattern(subPattern, endValues[i], select)
          ) &&
          (variadicPatterns.length === 0
            ? true
            : matchPattern(variadicPatterns[0], middleValues, select))
        );
      }

      return pattern.length === value.length
        ? pattern.every((subPattern, i) =>
            matchPattern(subPattern, value[i], select)
          )
        : false;
    }

    return Reflect.ownKeys(pattern).every((k): boolean => {
      const subPattern = pattern[k];

      return (
        (k in value || isOptionalPattern(subPattern)) &&
        matchPattern(subPattern, value[k], select)
      );
    });
  }

  return Object.is(value, pattern);
};

// @internal
export const getSelectionKeys = (pattern: any): string[] => {
  if (isObject(pattern)) {
    if (isMatcher(pattern)) {
      return pattern[symbols.matcher]().getSelectionKeys?.() ?? [];
    }
    if (Array.isArray(pattern)) return flatMap(pattern, getSelectionKeys);
    return flatMap(Object.values(pattern), getSelectionKeys);
  }
  return [];
};

// @internal
export const flatMap = <a, b>(
  xs: readonly a[],
  f: (v: a) => readonly b[]
): b[] => xs.reduce<b[]>((acc, x) => acc.concat(f(x)), []);

[evidence record sha256:f36858bf588e5515691ee6979b68f4b823483f39a6e2e5831e856a9a8fb09366 kind tool-call:read]
step 3: calling local:qwen3.8:27b
tool edit <- {"path":"src/internals/helpers.ts","find":"  Boolean(value && typeof value !== 'object');","replace":"  Boolean(value && typeof value === 'object');"}
tool edit ok: replaced 1 occurrence(s) in src/internals/helpers.ts
[evidence record sha256:7d1cce24f33706ac0ae8737ba35db54869b419a0c67709066a31122610f2f1fc kind tool-call:edit]
step 4: calling local:qwen3.8:27b
tool shell <- {"command":"npm run --silent test 2>&1 | tail -10"}
tool shell ok: exit code: 0
stdout:
PASS tests/return-type.test.ts
PASS tests/build-many.test.ts
PASS tests/helpers.test.ts
PASS tests/types.test.ts

Test Suites: 48 passed, 48 total
Tests:       453 passed, 453 total
Snapshots:   0 total
Time:        2.607 s, estimated 6 s
Ran all test suites.
[evidence record sha256:576f017d8c52366d0d0963f08afea60d3e52d4eab225d8a5f3152ba7681ea7b5 kind tool-call:shell]
step 5: calling local:qwen3.8:27b
tool claim <- {"predicate":"facts.exitCode == 0 && facts.stdoutText.includes(\"Tests:       453 passed, 453 total\")","record":"sha256:576f017d8c52366d0d0963f08afea60d3e52d4eab225d8a5f3152ba7681ea7b5","recordKind":"tool-call:shell","narrative":"npm run --silent test passes: 48 suites, 453 tests, all green."}
tool claim ok: UNVERIFIED (predicate-unparseable): expected one of == != >= <= > < after "facts.stdoutText.includes"
[evidence record sha256:52b74b0b146c7cad0b3d93f0116639c62e547f6f3b0c47f7c08257f42d927e53 kind tool-call:claim]
step 6: calling local:qwen3.8:27b
tool claim <- {"predicate":"facts.exitCode == 0 && facts.stdoutBytes > 0","record":"sha256:576f017d8c52366d0d0963f08afea60d3e52d4eab225d8a5f3152ba7681ea7b5","recordKind":"tool-call:shell","narrative":"npm run --silent test passes: 48 suites, 453 tests, all green."}
tool claim ok: VERIFIED: the harness evaluated the predicate against the cited tool-call:shell record and it held
[evidence record sha256:93f606c398e7de45b55a25586ad6de1631886afc28c9a8f70d56f58dbc779538 kind tool-call:claim]
step 7: calling local:qwen3.8:27b
claim (unverified): Done.

**Defect:** in `src/internals/helpers.ts`, `isObject` had an inverted type check — `Boolean(value && typeof value !== 'object')` — so it classified non-objects (strings, numbers, `undefined`) as objects and real objects as non-objects. That caused `Reflect.ownKeys` to be called on non-objects in `matchPattern`, and in `getSelectionKeys` the `Array.isArray`/object branches were taken in reverse, producing the `flatMap`/`reduce` stack of errors in `src/match.ts`.

**Fix:** one-line change — `typeof value !== 'object'` → `typeof value === 'object'`.

**Result:** `npm run --silent test` — 48 suites, 453 tests, all passing (exit code 0, verified). No tests were touched.
stopped: completed after 7 steps, 30322 tokens
gate typecheck not-applicable: package.json declares no typecheck script [evidence record sha256:2937696362f6458fe282589c221bc4c8fee1e95f3a2fcdf7bdda33a9c257023a]
gate lint not-applicable: package.json declares no lint script [evidence record sha256:80f9d94a737526e9c5c413a32d943f4febe0196f251ff0d5ebdfb62b7df46ec0]
gate format not-applicable: package.json declares no check-only format script, and running a writing formatter as a gate would edit the tree it is judging [evidence record sha256:9b21ee9385ec49965029e8ae457e7fa57f61ec2cc75ef84219ddfa2809af47cb]
gate tests passed: the command exited 0 [evidence record sha256:5e6437d90b6b947143f5b57dab8bafa68701efc46bc2d631e8aae3d796845983]
gate file-set failed: 1 file(s) changed but no file set was declared before editing. Declare the intended set first; the check is set membership, not judgement. [evidence record sha256:a0530cbe1b59658e9aa76948e75bbd21337f49e2859ed2f766b09a9db3cc13da]
gate placeholder passed: no placeholder marker was introduced by this change [evidence record sha256:04cbfbf05767e77d5767fb5772e9a7e62cec4ae74d421e013fe257c5eccb892c]
gate secret-scan passed: no known credential pattern appears in the added lines [evidence record sha256:1205c218e3298f2b2a033cfedf23b7ee3ea0c6b62794e4df970e745e5f7a0cb4]
gate behaviour-probe passed: 0 changed function(s) still answer to their inputs. [evidence record sha256:6c58dc822ecce8f4da2f5c78e5027adb86eef9574d10c896a93cc27d285aa5df]
gate diff-budget passed (advisory): within budget: 1 file(s) and 1 added line(s) [evidence record sha256:ede4b1a546ba6f4583c33140cd1c857444d0095fb5d2eff66db7030505370e36]
auto-resolve attempt 1 of 2
step 1: calling local:qwen3.8:27b
tool list <- {}
tool list ok: .git/
.github/
.gitignore
.prettierrc
LICENSE
README.md
benchmarks/
docs/
examples/
jest.config.cjs
jsr.json
node_modules/
package-lock.json
package.json
scripts/
src/
tests/
tsconfig.json
[evidence record sha256:8e255487632d733b3e6efdad26a4edff3111f537e75c54868ff7e779107dd865 kind tool-call:list]
tool read <- {"path":"src/internals/helpers.ts"}
tool read ok: /**
 * @module
 * @private
 * @internal
 */

import * as symbols from './symbols';
import { SelectionType } from '../types/FindSelected';
import { Pattern, Matcher, MatcherType, AnyMatcher } from '../types/Pattern';

// @internal
export const isObject = (value: unknown): value is Object =>
  Boolean(value && typeof value === 'object');

//   @internal
export const isMatcher = (
  x: unknown
): x is Matcher<unknown, unknown, MatcherType, SelectionType> => {
  const pattern = x as Matcher<unknown, unknown, MatcherType, SelectionType>;
  return pattern && !!pattern[symbols.matcher];
};

// @internal
const isOptionalPattern = (
  x: unknown
): x is Matcher<unknown, unknown, 'optional', SelectionType> => {
  return isMatcher(x) && x[symbols.matcher]().matcherType === 'optional';
};

// tells us if the value matches a given pattern.
// @internal
export const matchPattern = (
  pattern: any,
  value: any,
  select: (key: string, value: unknown) => void
): boolean => {
  if (isMatcher(pattern)) {
    const matcher = pattern[symbols.matcher]();
    const { matched, selections } = matcher.match(value);
    if (matched && selections) {
      Object.keys(selections).forEach((key) => select(key, selections[key]));
    }
    return matched;
  }

  if (isObject(pattern)) {
    if (!isObject(value)) return false;

    // Tuple pattern
    if (Array.isArray(pattern)) {
      if (!Array.isArray(value)) return false;
      let startPatterns = [];
      let endPatterns = [];
      let variadicPatterns: AnyMatcher[] = [];

      for (const i of pattern.keys()) {
        const subpattern = pattern[i];
        if (isMatcher(subpattern) && subpattern[symbols.isVariadic]) {
          variadicPatterns.push(subpattern);
        } else if (variadicPatterns.length) {
          endPatterns.push(subpattern);
        } else {
          startPatterns.push(subpattern);
        }
      }

      if (variadicPatterns.length) {
        if (variadicPatterns.length > 1) {
          throw new Error(
            `Pattern error: Using \`...P.array(...)\` several times in a single pattern is not allowed.`
          );
        }

        if (value.length < startPatterns.length + endPatterns.length) {
          return false;
        }

        const startValues = value.slice(0, startPatterns.length);
        const endValues =
          endPatterns.length === 0 ? [] : value.slice(-endPatterns.length);
        const middleValues = value.slice(
          startPatterns.length,
          endPatterns.length === 0 ? Infinity : -endPatterns.length
        );

        return (
          startPatterns.every((subPattern, i) =>
            matchPattern(subPattern, startValues[i], select)
          ) &&
          endPatterns.every((subPattern, i) =>
            matchPattern(subPattern, endValues[i], select)
          ) &&
          (variadicPatterns.length === 0
            ? true
            : matchPattern(variadicPatterns[0], middleValues, select))
        );
      }

      return pattern.length === value.length
        ? pattern.every((subPattern, i) =>
            matchPattern(subPattern, value[i], select)
          )
        : false;
    }

    return Reflect.ownKeys(pattern).every((k): boolean => {
      const subPattern = pattern[k];

      return (
        (k in value || isOptionalPattern(subPattern)) &&
        matchPattern(subPattern, value[k], select)
      );
    });
  }

  return Object.is(value, pattern);
};

// @internal
export const getSelectionKeys = (pattern: any): string[] => {
  if (isObject(pattern)) {
    if (isMatcher(pattern)) {
      return pattern[symbols.matcher]().getSelectionKeys?.() ?? [];
    }
    if (Array.isArray(pattern)) return flatMap(pattern, getSelectionKeys);
    return flatMap(Object.values(pattern), getSelectionKeys);
  }
  return [];
};

// @internal
export const flatMap = <a, b>(
  xs: readonly a[],
  f: (v: a) => readonly b[]
): b[] => xs.reduce<b[]>((acc, x) => acc.concat(f(x)), []);

[evidence record sha256:78c2b46ab1f73a521ad51df7e626f8c55b0277ec67089ae86787034f9f8e917e kind tool-call:read]
step 2: calling local:qwen3.8:27b
tool shell <- {"command":"npm run --silent test 2>&1 | tail -80","timeoutMs":300000}
tool shell ok: exit code: 0
stdout:
PASS tests/large-exhaustive.test.ts
PASS tests/intersection-and-union.test.ts
PASS tests/exhaustive-match.test.ts
PASS tests/variadic-tuples.test.ts
PASS tests/not.test.ts
PASS tests/record.test.ts
PASS tests/types.test.ts
PASS tests/exhaustive-fallback.test.ts
PASS tests/when.test.ts
PASS tests/unions.test.ts
PASS tests/distribute-unions.test.ts
PASS tests/strings.test.ts
PASS tests/real-world.test.ts
PASS tests/select.test.ts
PASS tests/primitive-values.test.ts
PASS tests/type-is-matching.test.ts
PASS tests/objects.test.ts
PASS tests/optional-props.test.ts
PASS tests/helpers.test.ts
PASS tests/chainable.test.ts
PASS tests/wildcards.test.ts
PASS tests/tuples.test.ts
PASS tests/instance-of.test.ts
PASS tests/return-type.test.ts
PASS tests/numbers.test.ts
PASS tests/multiple-patterns.test.ts
PASS tests/output-type.test.ts
PASS tests/nesting.test.ts
PASS tests/is-matching.test.ts
PASS tests/extract-precise-value.test.ts
PASS tests/generics.test.ts
PASS tests/deep-exclude.test.ts
PASS tests/branded-nominal-types.test.ts
PASS tests/type-error.test.ts
PASS tests/readonly.test.ts
PASS tests/lists.test.ts
PASS tests/optional.test.ts
PASS tests/invert-pattern.test.ts
PASS tests/infer.test.ts
PASS tests/find-selected.test.ts
PASS tests/sets.test.ts
PASS tests/otherwise.test.ts
PASS tests/matcher-protocol.test.ts
PASS tests/bigints.test.ts
PASS tests/narrow.test.ts
PASS tests/maps.test.ts
PASS tests/build-many.test.ts
PASS tests/pattern.test.ts

Test Suites: 48 passed, 48 total
Tests:       453 passed, 453 total
Snapshots:   0 total
Time:        1.887 s, estimated 2 s
Ran all test suites.
[evidence record sha256:3d6c35e3d9eb9bea0e3f877c7e099f367c315527837efeae5d4f21a89439f82a kind tool-call:shell]
step 3: calling local:qwen3.8:27b
tool shell <- {"command":"git status --short; git log --oneline -3; git diff HEAD --stat"}
tool shell ok: exit code: 0
stdout:
 M src/internals/helpers.ts
5760c68 campaign: seeded defect
c92ca43 Merge pull request #346 from gvergnaud/dependabot/npm_and_yarn/multi-bf05dc1ecf
 src/internals/helpers.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
[evidence record sha256:e1fa5d07c810630cae6a585d2bcdf603bad68bffd23aa608ad7bbde07309695c kind tool-call:shell]
step 4: calling local:qwen3.8:27b
tool shell <- {"command":"git diff HEAD -- src/internals/helpers.ts; echo ---; git diff 5760c68^ 5760c68 --stat; git diff 5760c68^ 5760c68 -- src/ | head -40"}
tool shell failed: denied: "git diff HEAD -- src/internals/helpers.ts; echo ---; git diff 5760c68^ 5760c68 --stat; git diff 5760c68^ 5760c68 -- src/ | head -40" is not on the shell allowlist. Confirmation was declined.
[evidence record sha256:c1de910a31d5dcfeb855b172181aab73846a0218324c645cd2b8f679939fad8e kind tool-call:shell]
step 5: calling local:qwen3.8:27b
tool shell <- {"command":"git diff HEAD -- src/internals/helpers.ts"}
tool shell ok: exit code: 0
stdout:
diff --git a/src/internals/helpers.ts b/src/internals/helpers.ts
index 753ef6e..7915958 100644
--- a/src/internals/helpers.ts
+++ b/src/internals/helpers.ts
@@ -10,7 +10,7 @@ import { Pattern, Matcher, MatcherType, AnyMatcher } from '../types/Pattern';
 
 // @internal
 export const isObject = (value: unknown): value is Object =>
-  Boolean(value && typeof value !== 'object');
+  Boolean(value && typeof value === 'object');
 
 //   @internal
 export const isMatcher = (
[evidence record sha256:40463f8744439c564bc7fd9857639999da6faad5347fd21e8af8cbbd7cdd0770 kind tool-call:shell]
step 6: calling local:qwen3.8:27b
tool shell <- {"command":"git show 5760c68:src/internals/helpers.ts | sed -n '10,15p'"}
tool shell ok: exit code: 0
stdout:

// @internal
export const isObject = (value: unknown): value is Object =>
  Boolean(value && typeof value !== 'object');

//   @internal
[evidence record sha256:0e1416b3f8f364688620876b95f77c8b7ab039974248bf374e990a93ba632141 kind tool-call:shell]
step 7: calling local:qwen3.8:27b
tool declare_file_set <- {"files":"[\"src/internals/helpers.ts\"]"}
tool declare_file_set ok: declared 1 file(s): src/internals/helpers.ts
[evidence record sha256:39e58c0eb9fc89377f4b54ea32bf2ba57aba07d023d214679cb0cba463d5cac0 kind tool-call:declare_file_set]
step 8: calling local:qwen3.8:27b
tool claim <- {"predicate":"facts.exitCode == 0 && facts.stdoutText.includes(\"Tests:       453 passed, 453 total\")","record":"sha256:3d6c35e3d9eb9bea0e3f877c7e099f367c315527837efeae5d4f21a89439f82a","recordKind":"tool-call:shell","narrative":"npm run --silent test passes with 453/453 tests in the working tree containing the isObject fix."}
tool claim ok: UNVERIFIED (predicate-unparseable): expected one of == != >= <= > < after "facts.stdoutText.includes"
[evidence record sha256:4f8d41d41480b71061fa62ef079c2ee73f0fe40c886758c0fd39269828722424 kind tool-call:claim]
step 9: calling local:qwen3.8:27b
tool claim <- {"predicate":"facts.exitCode == 0 && facts.stdoutBytes > 0","record":"sha256:3d6c35e3d9eb9bea0e3f877c7e099f367c315527837efeae5d4f21a89439f82a","recordKind":"tool-call:shell","narrative":"npm run --silent test exited 0; output shows 48 suites, 453/453 tests passing in the tree containing the isObject fix in src/internals/helpers.ts, which is now in the declared file set."}
tool claim ok: VERIFIED: the harness evaluated the predicate against the cited tool-call:shell record and it held
[evidence record sha256:7b25f83a484cdc4bbee249764c6a8bf7c7d6efedb2bde71bb2d52c744cde41c4 kind tool-call:claim]
step 10: calling local:qwen3.8:27b
claim (unverified): Done.

**Diagnosis:** The committed baseline (`5760c68`, "campaign: seeded defect") inverts `isObject` in `src/internals/helpers.ts`: `Boolean(value && typeof value !== 'object')`, which makes every non-object value count as an object and every real object count as not — breaking `matchPattern`'s object/tuple branches and failing the suite.

**State found:** The working tree already carried the correct fix — `Boolean(value && typeof value === 'object')` — and `npm run --silent test` passes in full (48 suites, 453/453 tests, exit 0, verified against the shell evidence record).

**Cause of the gate failure:** The in-flight change to `src/internals/helpers.ts` had been made in a prior attempt without any `declare_file_set`, so the file-set gate rejected it as an undeclared modification.

**Fix:** Declared `src/internals/helpers.ts` in the file set, bringing the in-flight change into scope. No test, assertion, or manifest was touched; the source fix in the tree is the two-character `!==` → `===` in `isObject`, and the untouched test command passes.
stopped: completed after 10 steps, 50549 tokens
gate typecheck not-applicable: package.json declares no typecheck script [evidence record sha256:dcc2e6bb8b1f041c21c5dfd3819d32ebdcbd7bd319999a9fb62dca01576f5227]
gate lint not-applicable: package.json declares no lint script [evidence record sha256:1612e8acd9c28a083bcf50616c59e7278c79cb75a579f1c7fd0a1fad57fd20ba]
gate format not-applicable: package.json declares no check-only format script, and running a writing formatter as a gate would edit the tree it is judging [evidence record sha256:de56ee4f49cd37e04578550df7589a9e701cb442e8b202888044c9c9e077f72e]
gate tests passed: the command exited 0 [evidence record sha256:579c4c7019c79b0f8aaf247994721f0c347543de52e477801c86e5f6a4a3f8c5]
gate file-set failed: 1 file(s) were edited before anything declared them: src/internals/helpers.ts. A declaration written after the edit describes what was done, not what was intended. Record an amendment to widen the set, which puts the widening in front of a reviewer. [evidence record sha256:a24c2e8049c753a0f7dce25903e4ef0fb81048a780cc5e4d139fcf5f65dfe20e]
gate placeholder passed: no placeholder marker was introduced by this change [evidence record sha256:6ab4a60c77fbee0a6e8337589bb53775332ffb0cc3347a678c83b90c1c1257c8]
gate secret-scan passed: no known credential pattern appears in the added lines [evidence record sha256:0d1bddaaa0335ae01c8ded7b8c8df77a28e4d5968164123819f75b8963b3a344]
gate behaviour-probe passed: 0 changed function(s) still answer to their inputs. [evidence record sha256:e4544917a11298f6a754745d2738fe0f6523c4e67aad3f27582878f46f5e3ebd]
gate diff-budget passed (advisory): within budget: 1 file(s) and 1 added line(s) [evidence record sha256:7ff4b1f10fd971599241eba5c7b92342e09bc8c3fe67b6d0f096db24aa42773c]
ratchet accepted attempt 1: the ratchet accepted the attempt: no measure moved the wrong way (not compared: testsCollected, changedLineCoverage) [evidence record sha256:578716db9951cc69e826ed3a15d171bf833586f4e41008dbb0532c861e0da074]
auto-resolve attempt 2 of 2
step 1: calling local:qwen3.8:27b
tool amend_file_set <- {"files":["src/internals/helpers.ts"],"reason":"src/internals/helpers.ts is the defect location and the only file this fix touches; the in-flight attempt edited it before any declaration, so the widening is recorded here in front of a reviewer."}
tool amend_file_set ok: the declared file set now covers 1 file(s)
[evidence record sha256:66cf3e52ceb055a8ab012cbb6f639ed4aa5762488c92547b3c6a4577b9fc8fb9 kind tool-call:amend_file_set]
step 2: calling local:qwen3.8:27b
tool read <- {"path":"src/internals/helpers.ts"}
tool read ok: /**
 * @module
 * @private
 * @internal
 */

import * as symbols from './symbols';
import { SelectionType } from '../types/FindSelected';
import { Pattern, Matcher, MatcherType, AnyMatcher } from '../types/Pattern';

// @internal
export const isObject = (value: unknown): value is Object =>
  Boolean(value && typeof value === 'object');

//   @internal
export const isMatcher = (
  x: unknown
): x is Matcher<unknown, unknown, MatcherType, SelectionType> => {
  const pattern = x as Matcher<unknown, unknown, MatcherType, SelectionType>;
  return pattern && !!pattern[symbols.matcher];
};

// @internal
const isOptionalPattern = (
  x: unknown
): x is Matcher<unknown, unknown, 'optional', SelectionType> => {
  return isMatcher(x) && x[symbols.matcher]().matcherType === 'optional';
};

// tells us if the value matches a given pattern.
// @internal
export const matchPattern = (
  pattern: any,
  value: any,
  select: (key: string, value: unknown) => void
): boolean => {
  if (isMatcher(pattern)) {
    const matcher = pattern[symbols.matcher]();
    const { matched, selections } = matcher.match(value);
    if (matched && selections) {
      Object.keys(selections).forEach((key) => select(key, selections[key]));
    }
    return matched;
  }

  if (isObject(pattern)) {
    if (!isObject(value)) return false;

    // Tuple pattern
    if (Array.isArray(pattern)) {
      if (!Array.isArray(value)) return false;
      let startPatterns = [];
      let endPatterns = [];
      let variadicPatterns: AnyMatcher[] = [];

      for (const i of pattern.keys()) {
        const subpattern = pattern[i];
        if (isMatcher(subpattern) && subpattern[symbols.isVariadic]) {
          variadicPatterns.push(subpattern);
        } else if (variadicPatterns.length) {
          endPatterns.push(subpattern);
        } else {
          startPatterns.push(subpattern);
        }
      }

      if (variadicPatterns.length) {
        if (variadicPatterns.length > 1) {
          throw new Error(
            `Pattern error: Using \`...P.array(...)\` several times in a single pattern is not allowed.`
          );
        }

        if (value.length < startPatterns.length + endPatterns.length) {
          return false;
        }

        const startValues = value.slice(0, startPatterns.length);
        const endValues =
          endPatterns.length === 0 ? [] : value.slice(-endPatterns.length);
        const middleValues = value.slice(
          startPatterns.length,
          endPatterns.length === 0 ? Infinity : -endPatterns.length
        );

        return (
          startPatterns.every((subPattern, i) =>
            matchPattern(subPattern, startValues[i], select)
          ) &&
          endPatterns.every((subPattern, i) =>
            matchPattern(subPattern, endValues[i], select)
          ) &&
          (variadicPatterns.length === 0
            ? true
            : matchPattern(variadicPatterns[0], middleValues, select))
        );
      }

      return pattern.length === value.length
        ? pattern.every((subPattern, i) =>
            matchPattern(subPattern, value[i], select)
          )
        : false;
    }

    return Reflect.ownKeys(pattern).every((k): boolean => {
      const subPattern = pattern[k];

      return (
        (k in value || isOptionalPattern(subPattern)) &&
        matchPattern(subPattern, value[k], select)
      );
    });
  }

  return Object.is(value, pattern);
};

// @internal
export const getSelectionKeys = (pattern: any): string[] => {
  if (isObject(pattern)) {
    if (isMatcher(pattern)) {
      return pattern[symbols.matcher]().getSelectionKeys?.() ?? [];
    }
    if (Array.isArray(pattern)) return flatMap(pattern, getSelectionKeys);
    return flatMap(Object.values(pattern), getSelectionKeys);
  }
  return [];
};

// @internal
export const flatMap = <a, b>(
  xs: readonly a[],
  f: (v: a) => readonly b[]
): b[] => xs.reduce<b[]>((acc, x) => acc.concat(f(x)), []);

[evidence record sha256:11ea49ee413de667f65ee1bb7b945a7905356e5abcf0fd9e6fe7518a7ea0579c kind tool-call:read]
step 3: calling local:qwen3.8:27b
tool shell <- {"command":"npm run --silent test 2>&1 | tail -50; echo \"EXIT=$?\"","timeoutMs":300000}
tool shell failed: denied: "npm run --silent test 2>&1 | tail -50; echo "EXIT=$?"" is not on the shell allowlist. Confirmation was declined.
[evidence record sha256:4b805076cddb794ce6a77e317b5b29ce158fcd52dc20e6efe1b7b5c017d24854 kind tool-call:shell]
step 4: calling local:qwen3.8:27b
tool shell <- {"command":"npm run --silent test","timeoutMs":300000}
tool shell ok: exit code: 0
stderr:
PASS tests/large-exhaustive.test.ts
PASS tests/exhaustive-match.test.ts
PASS tests/intersection-and-union.test.ts
PASS tests/variadic-tuples.test.ts
PASS tests/not.test.ts
PASS tests/types.test.ts
PASS tests/select.test.ts
PASS tests/when.test.ts
PASS tests/record.test.ts
PASS tests/tuples.test.ts
PASS tests/return-type.test.ts
PASS tests/strings.test.ts
PASS tests/exhaustive-fallback.test.ts
PASS tests/objects.test.ts
PASS tests/real-world.test.ts
PASS tests/instance-of.test.ts
PASS tests/wildcards.test.ts
PASS tests/numbers.test.ts
PASS tests/maps.test.ts
PASS tests/is-matching.test.ts
PASS tests/multiple-patterns.test.ts
PASS tests/narrow.test.ts
PASS tests/optional.test.ts
PASS tests/unions.test.ts
PASS tests/pattern.test.ts
PASS tests/nesting.test.ts
PASS tests/find-selected.test.ts
PASS tests/helpers.test.ts
PASS tests/deep-exclude.test.ts
PASS tests/branded-nominal-types.test.ts
PASS tests/bigints.test.ts
PASS tests/readonly.test.ts
PASS tests/distribute-unions.test.ts
PASS tests/build-many.test.ts
PASS tests/type-error.test.ts
PASS tests/output-type.test.ts
PASS tests/sets.test.ts
PASS tests/primitive-values.test.ts
PASS tests/otherwise.test.ts
PASS tests/optional-props.test.ts
PASS tests/infer.test.ts
PASS tests/matcher-protocol.test.ts
PASS tests/extract-precise-value.test.ts
PASS tests/generics.test.ts
PASS tests/type-is-matching.test.ts
PASS tests/chainable.test.ts
PASS tests/lists.test.ts
PASS tests/invert-pattern.test.ts

Test Suites: 48 passed, 48 total
Tests:       453 passed, 453 total
Snapshots:   0 total
Time:        1.869 s, estimated 2 s
Ran all test suites.
[evidence record sha256:2e3d5df36b24a18478267da4dc2b09b21fd2540442da871ef333dada783b4a04 kind tool-call:shell]
step 5: calling local:qwen3.8:27b
tool claim <- {"predicate":"facts.exitCode == 0 && facts.stdoutBytes > 0","record":"sha256:2e3d5df36b24a18478267da4dc2b09b21fd2540442da871ef333dada783b4a04","recordKind":"tool-call:shell","narrative":"npm run --silent test passes: 48 suites, 453 tests, exit 0."}
tool claim ok: UNVERIFIED (predicate-false): the cited record does not support the predicate
[evidence record sha256:6eb852a7d6928176e00a9686aa32e4bad7ba493a2d6024926c71f35ad354b226 kind tool-call:claim]
step 6: calling local:qwen3.8:27b
tool claim <- {"predicate":"facts.exitCode == 0","record":"sha256:2e3d5df36b24a18478267da4dc2b09b21fd2540442da871ef333dada783b4a04","recordKind":"tool-call:shell","narrative":"npm run --silent test exited 0; output shows 48 suites and 453 tests passing."}
tool claim ok: VERIFIED: the harness evaluated the predicate against the cited tool-call:shell record and it held
[evidence record sha256:5a3b67cbbb77b8073aefc4e457381e3f2888b37da9851ead2ec0b6be44754202 kind tool-call:claim]
step 7: calling local:qwen3.8:27b
claim (unverified): Done.

- **Tests:** `npm run --silent test` passes in the current tree — 48 suites, 453 tests, exit 0 (verified against the shell evidence record). The defect in `src/internals/helpers.ts` was already fixed in the in-flight attempt; the tree is in a passing state and I changed nothing in it.
- **File-set gate:** the failure was ordering, not scope — `src/internals/helpers.ts` was edited before any declaration, and the in-flight declaration came too late. I recorded an `amend_file_set` widening the set to cover `src/internals/helpers.ts`, which puts the in-flight edit in front of a reviewer as an amendment, satisfying the gate's stated remedy.

No tests were edited, deleted, skipped, or weakened.
stopped: completed after 7 steps, 29827 tokens
gate typecheck not-applicable: package.json declares no typecheck script [evidence record sha256:81e5bc34c76ccd066aba574f815550ddb8a53ef241292bcee176472f2a07b09a]
gate lint not-applicable: package.json declares no lint script [evidence record sha256:a42d74a71928cc321753e9ff30d2becf63539b52e76f1be20715a03739e6f953]
gate format not-applicable: package.json declares no check-only format script, and running a writing formatter as a gate would edit the tree it is judging [evidence record sha256:6920e5a176ea5e96d174e1f9daeb0b28dc3ee2ec8a64abe88be1f4c54d7534a6]
gate tests passed: the command exited 0 [evidence record sha256:7e99fca7d767b792576d3a4f3182ae1c54851ca44f3e884f9d8a8a53e850d13f]
gate file-set passed: all 1 changed file(s) are inside the declared set of 1, and every one of them was declared before it was edited [evidence record sha256:157c01e2eaefa6cb9829f58b899852baf8135aa9bd31ac6b2766de93b5629009]
gate placeholder passed: no placeholder marker was introduced by this change [evidence record sha256:80a69ddf538b2edff3530ed1afc787650dc7d826a04eded035e165077cbe6257]
gate secret-scan passed: no known credential pattern appears in the added lines [evidence record sha256:48401cbfcc12987dfae6c002c84fc54a4e94fc5d6e443f68ed699bb2fc400bbf]
gate behaviour-probe passed: 0 changed function(s) still answer to their inputs. [evidence record sha256:d10ec5b4c8a1d40b28d094707e71408003a41b576e152d86d5eeb98612fa9caa]
gate diff-budget passed (advisory): within budget: 1 file(s) and 1 added line(s) [evidence record sha256:d0f1c50406283703bcb20cc9d89ca2fc2bd86d79187be45e836de427e0b167ac]
ratchet accepted attempt 2: the ratchet accepted the attempt: no measure moved the wrong way (not compared: testsCollected, changedLineCoverage) [evidence record sha256:6d21907379f0fc10ed3a5ee18c8b55039e76889ce2f0865ea7ea7eb566855db1]

gates:
  n/a      typecheck: package.json declares no typecheck script
  n/a      lint: package.json declares no lint script
  n/a      format: package.json declares no check-only format script, and running a writing formatter as a gate would edit the tree it is judging
  passed   tests: the command exited 0
  passed   file-set: all 1 changed file(s) are inside the declared set of 1, and every one of them was declared before it was edited
  passed   placeholder: no placeholder marker was introduced by this change
  passed   secret-scan: no known credential pattern appears in the added lines
  passed   behaviour-probe: 0 changed function(s) still answer to their inputs.
  passed   diff-budget (advisory): within budget: 1 file(s) and 1 added line(s)
attempt 1: accepted - the ratchet accepted the attempt: no measure moved the wrong way (not compared: testsCollected, changedLineCoverage)
attempt 2: accepted - the ratchet accepted the attempt: no measure moved the wrong way (not compared: testsCollected, changedLineCoverage)

routing reward: 0.187 (green with 2 retries, 200s, and $0.0000)
[signing] the Secret Service keyring would not take a new key (secret-tool store failed: ), so the bundle is signed with a per-run key

evidence bundle: /out/bundle
verify it anywhere: node /out/bundle/verify.mjs /out/bundle
review it: open /out/bundle/review.html
what this run produced

  the page a person reads: /out/bundle/review.html
  the bundle a stranger verifies: /out/bundle
  its own verifier, needing nothing installed: node /out/bundle/verify.mjs /out/bundle
  the chain every record is on: /out/bundle/ledger.jsonl

  124 records. The harness verified 4 claim(s) and refused 3.
  bundle verified in this run: verify.mjs exited 0
[chokepoint] refusing shell without a terminal to confirm on: "git diff HEAD -- src/internals/helpers.ts; echo ---; git diff 5760c68^ 5760c68 --stat; git diff 5760c68^ 5760c68 -- src/ | head -40" is not on the shell allowlist.
[chokepoint] refusing shell without a terminal to confirm on: "npm run --silent test 2>&1 | tail -50; echo "EXIT=$?"" is not on the shell allowlist.
