Finish experiment pool: forced fan-out, list, deliver-back (#629) - #647
Merged
Conversation
Mint/reuse is proven against a real git repo. While a pool is armed the root system prompt says it MUST spawn and must not edit the caller tree. graff worktree list tags exp-* trees. Child finish reports path, branch, keep-reason, and diffstat and never deletes a pool seat.
This was referenced Aug 27, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Finishes the #629 items that were still open after the first slice.
What landed
armcreates.graff/worktrees/exp-{id}/{i}ongraff/exp/{id}/{i}, then reuses the directories on a second arm. Proven in a tmp repo (not a path-string test).subagentper independent arm and must not edit the caller tree.--experimentappends that line to the prompt base;/experiment Npins it throughsetSystemPromptsso a playbook refresh cannot drop it.graff worktree listtags the pool. Paths under.graff/worktrees/exp-and branchesgraff/exp/…show as(experiment pool).dirty/committed/unverifiable/ clean-left-in-pool), andgit diff --statvs the mint HEAD. Pool trees are neverworktree remove’d (ADR 0037). Per-spawnisolation: worktreecleanup is unchanged.#295 (dependent stages) and #554 (Docker snapshots) stay out of scope.
Verification
Tier 1 green: 1726 unit tests (including the live git mint/reuse + deliver-back case), 448 TUI tests, 17 PTY probes.