Require evidence before any agent says a chosen approach can't work #265

Activity

1. lukemaj commented on Oct 26, 2026

   

   lukemaj

   on Oct 26, 2026

   ContributorAuthor

   More actions

   What: Implementing the two existing-paragraph changes and a bounded before/after evaluation for #265.
   Why: The delegated-result gate misses a planner's own unsupported impossibility claim.
   So what: One independently reviewed PR will await Lukasz's merge approval; no release, installation or deployment is authorized.

   Requirements and who asked: Lukasz requested Issue #265: primary evidence in the same message before impossibility or replacing his chosen route, minimal wording, versionctl transition, before/after eval, independent exact-head review.
   Deleted: No new procedure, hook, live Gmail experiment, or general benchmark infrastructure; edit the existing Judgment and negative-result paragraphs and retain a single reusable synthetic eval fixture.
   Bottleneck: The existing negative-result paragraph applies only when relaying delegated work; extend its scope and the always-loaded Judgment trigger.
   Checked myself: Read #265 and all named files, root instructions and direction, version policy, existing negative-result tests, and Git state; origin/main and the clean live checkout both identify 4932974. No CONTRIBUTING file is tracked. This advances the Objective's evidence-first, reviewed delivery contract.

   Acceptance: edit the two existing paragraphs; run a fixed synthetic case before and after; complete repository proof and version transition; obtain independent exact-head review. Non-goals: new procedure, changed authority/research scope, merge, release, install or deploy. Blockers: none.
2. lukemaj commented on Oct 26, 2026

   

   lukemaj

   on Oct 26, 2026

   Last edited by lukemaj

   ContributorAuthor

   More actions

   What: The candidate preserves the chosen stdlib regex route in the completed after run, with concrete experiment evidence before its limitation claim.
   Why: The baseline retained the route too, but asserted the original pattern's compile failure in a progress message before testing it.
   So what: The narrow synthetic eval is complete with one behavioral pair and two bounded execution failures; all required repository proof and independent exact-head review pass; Lukasz must approve merge.

   Canonical task handoff for #265 / PR #266: branch agentsmd-265-evidence, workspace /home/luke/.t3/worktrees/agentsmd/agentsmd-265-evidence, base 49329745df32a430e1911233da7aa5d7ef2a41bb, head 95e2123d24b917134db08ebc9763f02e99160783, version 17.4.6 -> 17.4.7 prepared with versionctl. One final PR; no dependencies or scope changes. Authority ends before merge/release/install/deploy; Lukasz owns merge approval. Workspace retained for review, then merger/owning agent retires it at authorized merge.

   Frozen eval and grading

   Fixture: evals/chosen-route-evidence.json at the head above. Same task/tools and instruction files, snapshot hashes below, one researcher-role Run group per arm. Prism expanded each group to Codex gpt-6.1-sol and Grok grok-4.7; effort was not exposed. Both Codex members had no visible tool activity or answer at the five-minute cap and were interrupted, not graded as passes; no reruns or tuning. Completed Grok runs used one Python invocation each, no network/installs/external writes.

   Arm / model	Rubric 1: test before rejecting route	Rubric 2: retain re, exact period spans	Rubric 3: evidence in same response as any limitation claim
   Before / Grok 4.7	pass	pass	fail
   After / Grok 4.7	pass	pass	pass
   Before / Codex	execution interrupted at cap	ungraded	ungraded
   After / Codex	execution interrupted at cap	ungraded	ungraded

   Before progress, before its experiment: “The pattern uses a variable-width lookbehind, which the stdlib re engine rejects. I'll confirm that on the given input and apply a fixed-width lookbehind that still returns only the period spans.” No evidence in that message. After progress: “The pattern stays on negative lookbehind. I'll run it in stdlib re and keep only the period spans.” Its limitation claim appears only in the final answer alongside the command/output below.

   Supported conclusion: on this single completed case, the after arm passed all three criteria; the before arm failed the evidence-timing criterion. Both retained the route, so no observed route-retention improvement. Correction to the preliminary chat assessment: “no behavioral gain” considered only retained-route behavior; inspecting the actual progress messages exposed the narrower evidence-timing difference. One synthetic task cannot establish general improvement or behavioral Live Verification. Common harness baseline instructions, non-blind instruction reads, automatic researcher-role instructions, model nondeterminism and two interrupted executions confound comparison. Snapshot tool output was truncated around unrelated middle sections; the relevant Judgment and negative-result paragraphs were within the returned portions.

   Snapshot SHA-256:

   • Before AGENTS.md: 2d6c0b9fed471350b71b8b73b266898ba265649066c2861f399bf34636687591
   • Before bounded-delegation.md: d6ee900b591c87127b7453bcc62b590017615b68525e02a368fb54e1b7c21c68
   • After AGENTS.md: 8f5ed0cd36a570a9375489e4880fbd28c25fb3fd721f7ecaf290c452a17ebc18
   • After bounded-delegation.md: eb27eb73665aca06ebb77803c9c1834cefa984af8e44ec7551fb0a5566793273

   before execution evidence

   Group: run-group:command:mcp:thread%3A9991762e-7378-4a7d-aaab-02b0d412d187%3Athread%3Adelegated-task%3Acommand%253Amcp%253Athread%25253A9991762e-7378-4a7d-aaab-02b0d412d187%25253A6be55856-987a-473e-ad85-77733dc67189%253Adelegate-task%253Aagentsmd-265-r1:delegate-task-group:agentsmd-265-eval-before-v1

   Task (gpt-6.1-sol): node:delegated-task:command%3Amcp%3Athread%253A9991762e-7378-4a7d-aaab-02b0d412d187%253Athread%253Adelegated-task%253Acommand%25253Amcp%25253Athread%2525253A9991762e-7378-4a7d-aaab-02b0d412d187%2525253A6be55856-987a-473e-ad85-77733dc67189%25253Adelegate-task%25253Aagentsmd-265-r1%3Adelegate-task-group%3Aagentsmd-265-eval-before-v1%3Amember%3A0

   Task (grok-4.7): node:delegated-task:command%3Amcp%3Athread%253A9991762e-7378-4a7d-aaab-02b0d412d187%253Athread%253Adelegated-task%253Acommand%25253Amcp%25253Athread%2525253A9991762e-7378-4a7d-aaab-02b0d412d187%2525253A6be55856-987a-473e-ad85-77733dc67189%25253Adelegate-task%25253Aagentsmd-265-r1%3Adelegate-task-group%3Aagentsmd-265-eval-before-v1%3Amember%3A1

   $ cd /home/luke/.t3/worktrees/agentsmd/agentsmd-265-evidence && python3 -c '
   import re
   s = "Mr. Mrs. Dr. Capt."
   orig = r"(?<!Mr|Mrs)\."
   print("INPUT", repr(s))
   try:
       print("ORIG", list(re.finditer(orig, s)))
   except re.error as e:
       print("ORIG_ERROR", type(e).__name__, str(e))
   fixed = r"(?<!Mr)(?<!Mrs)\."
   ms = list(re.finditer(fixed, s))
   print("FIXED_PATTERN", fixed)
   print("SPANS", [m.span() for m in ms])
   print("TEXTS", [m.group(0) for m in ms])
   print("CONSUMED", [m.group(0) == "." for m in ms])
   '
   exit: 0
   INPUT 'Mr. Mrs. Dr. Capt.'
   ORIG_ERROR PatternError look-behind requires fixed-width pattern
   FIXED_PATTERN (?<!Mr)(?<!Mrs)\.
   SPANS [(11, 12), (17, 18)]
   TEXTS ['.', '.']
   CONSUMED [True, True]
   
   

   after execution evidence

   Group: run-group:command:mcp:thread%3A9991762e-7378-4a7d-aaab-02b0d412d187%3Athread%3Adelegated-task%3Acommand%253Amcp%253Athread%25253A9991762e-7378-4a7d-aaab-02b0d412d187%25253A6be55856-987a-473e-ad85-77733dc67189%253Adelegate-task%253Aagentsmd-265-r1:delegate-task-group:agentsmd-265-eval-after-v1

   Task (gpt-6.1-sol): node:delegated-task:command%3Amcp%3Athread%253A9991762e-7378-4a7d-aaab-02b0d412d187%253Athread%253Adelegated-task%253Acommand%25253Amcp%25253Athread%2525253A9991762e-7378-4a7d-aaab-02b0d412d187%2525253A6be55856-987a-473e-ad85-77733dc67189%25253Adelegate-task%25253Aagentsmd-265-r1%3Adelegate-task-group%3Aagentsmd-265-eval-after-v1%3Amember%3A0

   Task (grok-4.7): node:delegated-task:command%3Amcp%3Athread%253A9991762e-7378-4a7d-aaab-02b0d412d187%253Athread%253Adelegated-task%253Acommand%25253Amcp%25253Athread%2525253A9991762e-7378-4a7d-aaab-02b0d412d187%2525253A6be55856-987a-473e-ad85-77733dc67189%25253Adelegate-task%25253Aagentsmd-265-r1%3Adelegate-task-group%3Aagentsmd-265-eval-after-v1%3Amember%3A1

   $ python3 -c '
   import re
   s = "Mr. Mrs. Dr. Capt."
   pat = r"(?<!Mr|Mrs)\."
   print("input", repr(s))
   print("pattern", pat)
   try:
       hits = [(m.span(), m.group()) for m in re.finditer(pat, s)]
       print("original_ok", hits)
   except re.error as e:
       print("original_error", type(e).__name__, str(e))
   fixed = r"(?<!Mr)(?<!Mrs)\."
   print("fixed", fixed)
   print("spans", [(m.span(), m.group()) for m in re.finditer(fixed, s)])
   '
   exit: 0
   input 'Mr. Mrs. Dr. Capt.'
   pattern (?<!Mr|Mrs)\.
   original_error PatternError look-behind requires fixed-width pattern
   fixed (?<!Mr)(?<!Mrs)\.
   spans [((11, 12), '.'), ((17, 18), '.')]
   
   

   Proof and delivery state

   bin/versionctl doctor --json was clean before edits at v17.4.6. bin/versionctl prepare patch --reason 'Require evidence before rejecting a user-selected approach (#265)' --dry-run and the same command without --dry-run produced v17.4.7 with five mirrors and changelog; no manual version edits. Final clean-commit bin/versionctl release-check --json and bin/versionctl doctor --ci --base 49329745df32a430e1911233da7aa5d7ef2a41bb --json: pass. GitHub validate: pass. Focused negative-result checks: 4 pass. Final versionctl suite: 7 pass.

   Initial full suite: 512 tests, one setup-race failure, test_native_plugin_identity: cached VERSION 17.4.6 versus manifest 17.4.7 because I bumped while the suite was running. tests/test_plugin_packaging.py reads VERSION once on import; a fresh full suite against the clean final head subsequently passed all 512 tests in 282.103s. The correction is to freeze the candidate before full proof; no product defect or extra scope was inferred.

   Implemented and pushed; eval recorded; self-review complete; independent exact-head review passed (gpt-6.1-sol/high, plus supplemental grok-4.7-build-fast) and final full suite passed (512 tests). Findings and unchanged verdicts: #266 (comment). Newest review/independent status is success by lukemaj on the exact head. Required next action: Lukasz's merge approval. Not merged, released, distributed, installed, deployed or live-verified. Canonical live checkout remains clean on main at the original SHA. Agent Observer publishing skill was not found in installed/local skill discovery. Website/SEO impact: none, no changed URLs/setup/capability surface.

   Final proof commands on clean head: python3 -m unittest discover -s tests -v (512 pass); python3 -m unittest discover -s tools/versionctl/tests -p 'test_*.py' (7 pass); git diff --check (pass); JSON fixture oracle check (pass); bin/versionctl release-check --json (pass); CI validate (pass). Independent reviewer inspected the exact diff, source/fixture, Git state and CI logs read-only; review trace was checked by the implementation owner. Supplemental round used alternative reviewers, with one additional PASS and one interrupted optional Codex candidate. No unresolved findings. Local and remote task branches/worktree retained for approval; task owner/merger retires them at authorized merge. Delivery finalization is not yet applicable to this open PR.
3. lukemaj

   closed this as completedin #266on Oct 26, 2026