| name | durable-session-state |
| audience | swarm-plugin |
| description | Persist plans, scope decisions, evidence, and reviewer/critic verdicts to durable files during long or multi-phase tasks so work survives context compaction, session resumes, and handoffs. Use for swarm-mode tasks, before context grows large, when recording approval gates, and when resuming after compaction or a session restart.
|
Durable Session State
Long swarm-mode sessions outlive their context window. Compaction summarizes
history, and summaries lose exactly the things the swarm gates depend on:
which diff a reviewer approved, what evidence was recorded, which decisions
are settled. Without durable artifacts, a resumed session re-litigates settled
decisions or — worse — treats a stale approval as current. Persist state to
files as you go; treat the conversation as cache, not storage.
Where artifacts live
- Generic swarm tasks:
.claude/session/tasks/<task-slug>/ in the project.
- Issue-tracer work:
.agents/issue-traces/<issue-slug>/ (that skill's own schema
— 08b-implementation-review.md, 09-final-critic.md — wins for its work).
- Never write task artifacts to the repo root, and never under
.swarm/ —
that directory is the OpenCode plugin's runtime state, not Claude Code's.
- These artifacts are working state, not deliverables: do not commit them
unless the user asks. Before committing, check
git status and exclude
them explicitly.
What to persist
Keep it to four small files per task; update in place:
-
plan.md — task scope, success criteria, files in scope, what must not
break. Update when scope changes; never fork a second plan file.
-
decisions.md — one line per settled decision with a one-line rationale
("chose X over Y because Z"). Settled means: do not reopen without new
evidence or a user request.
-
evidence.md — validation commands run and their outcomes (pass/fail plus
the load-bearing output lines, not full logs).
-
gates.md — the approval ledger. One entry per reviewer/critic verdict:
## <gate> — <APPROVE|NEEDS_REVISION|BLOCKED>
when: <ISO timestamp or turn marker>
head: <git rev-parse HEAD>
diff: <git diff --stat summary>
items: <blocking items, or none>
When to write
- At phase boundaries (scope settled, plan built, implementation done, each
gate verdict received).
- Before ending a turn while background subagents are running.
- Whenever you notice the conversation is long — write ahead of compaction,
not after it.
Resume protocol
On resuming (after compaction, a restart, or a handoff), before doing new
work:
- Re-read the task's artifacts. They are authoritative over your memory of
the conversation.
- Do not re-litigate
decisions.md entries or redo work evidence.md
already proves, absent new evidence or a user request.
- Check gate staleness: if
git rev-parse HEAD or the working-tree diff no
longer matches the latest APPROVE entry in gates.md, that approval is
invalid — re-run the affected reviewer/critic gate on the current diff.
- If artifacts and the summarized conversation disagree, trust the artifacts
and say so.
Relationship to swarm gates
The swarm-mode contract invalidates any approval issued before the latest
edit. The gates.md ledger is what makes that rule checkable instead of
vibes: record the HEAD and diff summary at approval time, compare on resume
and before final synthesis. If you cannot demonstrate approval-after-last-edit
from the ledger, the gate is not satisfied.
