* learnings: edit-in-place tmpfile (drop update_learnings tool)
learnings now follow the PR-summary file pattern: server seeds
`pullfrog-learnings.md` from `Repo.learnings` at startup, agent reads
it as part of context, may edit in place during the post-run reflection
turn, server reads back at end-of-run and PATCHes if changed.
motivation: `update_learnings` required the agent to pass the FULL
merged list as a string parameter — an output-token tax that grew
linearly with the learnings size, and a constant prompt-context
expansion since the contents were also inlined into the LEARNINGS
section. for repos with mature learnings the prompt was getting
visibly noisy in CI logs.
key changes:
- new `action/utils/learnings.ts` (seed/read helpers + 10k cap)
- `main.ts`: always seed; `persistLearnings` mirrors `persistSummary`
(success path, error path, exit-signal handler, idempotent guard,
byte-trim equality skip); forwards `model` for `LearningsRevision.model`
- `LEARNINGS` prompt section now contains only the file path + a
one-line "read it" instruction (no contents inlined)
- `update_learnings` MCP tool deleted; `action/mcp/learnings.ts` removed
- reflection turn (`buildLearningsReflectionPrompt`) reframed around
file editing with explicit prune-stale + leave-alone-if-nothing-new
framing
- `learningsStep` removed from every mode checklist — surface lives only
in the LEARNINGS prompt section + the reflection turn now
* learnings: harden seed step + refresh stale docs (review feedback)
Three findings from PR review, all implemented:
1. wrap learnings seed in best-effort try/catch (action/main.ts) —
the always-on seed block ran unconditionally and an unwrapped
`seedLearningsFile` (mkdir + writeFile) failure (ENOSPC, EACCES,
hostile sandbox) would unwind into the outer main() catch and flip
an otherwise-successful run to "❌ Pullfrog failed" before the
agent even started. asymmetric with `persistLearnings`'s own
best-effort contract. wrap and log on failure; downstream
consumers (`persistLearnings`, agent harnesses, `resolveInstructions`)
already handle `learningsFilePath: undefined` cleanly.
2. refresh wiki/main.md — `resolveInstructions` parameter renamed
from `learnings` to `learningsFilePath` in this PR; the data-flow
diagram and the resolver dependency table both still showed the
pre-refactor signature.
3. drop deleted `learnings.ts` from ROADMAP.md + RESEARCH.md
"missing MCP tool tests" bullets — `action/mcp/learnings.ts` was
removed in this PR; the bullets are otherwise still accurate.
Colin McDonnell
d6de1c369a