feat(agent): trusted time evidence and collection prompt optimization

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- time_context.py: server-side observation clocks for relative-time
  evidence (anti client-forgery); resolves X分钟前/小时前 against the
  observation timestamp of the turn that produced them, never re-basing
  history on the current clock; flags historical references without a
  reliable baseline
- state: dialogue_timestamps keyed by dialogue message index, persisted
  with checkpoint; welcome seeds index 0
- collect: single clock per turn shared by reply/extraction/repair;
  time_evidence injected into runtime context; reply_validator hook
  rejects time claims lacking evidence (one shared repair budget);
  model still interprets facts and chooses actions
- prompts: collection prompt restructured (shorter, state-bound-to-action
  table, gatekeeper principle, time source rules); extraction prompt
  aligned; workflow@20261021 json updated to match
- evals: prompt_probes / prompt_compare / time_boundary probe scripts
  (supplementary checks, original cases untouched)
- docs: collection-prompt-optimization.md (method + baselines),
  time-boundary-fix.md (problem, design, verification)
- gitignore: editor artifact dirs (.agents/.claude/.vscode, skills-lock)

Verified: 171 unit tests pass (16 new time-context tests)

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This commit is contained in:

Eric Wang

2026-10-22 09:41:32 +08:00

parent a890f41f6f

commit 9e28f69b3c

14 changed files with 827 additions and 588 deletions

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workflow/20261021/事故信息采集2025118.json

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