Each group's on-disk state (CLAUDE.md, .claude-shared/, agent-runner-src/)
is now initialized exactly once at group creation and owned by the group
forever after. Spawn does only mounts — no copies, no settings.json
overwrites, no skill clobbers, no source resyncs.
Global memory composition switches from "host reads /workspace/global/CLAUDE.md
at bootstrap and stuffs it into systemPrompt.append" to "group CLAUDE.md
imports it via @/workspace/global/CLAUDE.md at the top." Edits to global
propagate instantly through the existing read-only mount; no copy, no
restart.
- src/group-init.ts: new initGroupFilesystem(group, opts?) — idempotent,
populates groups/<folder>/, .claude-shared/, agent-runner-src/ only when
paths don't already exist.
- src/container-runner.ts: buildMounts() calls init defensively at the
top (catches existing groups on first spawn after this change), drops
the inline settings.json write, skills cpSync loop, and agent-runner-src
rm-then-copy. Just mounts now.
- src/delivery.ts: create_agent flow uses initGroupFilesystem with
optional instructions, replacing the inline mkdirSync + writeFileSync.
- container/agent-runner/src/index.ts: drops GLOBAL_CLAUDE_MD reading.
systemContext.instructions is now only the runtime-generated
destinations addendum.
- scripts/migrate-group-claude-md.ts: one-shot migration that prepends
the @-import to existing groups' CLAUDE.md. Skips if global doesn't
exist or if the @-import is already present (regex match on the @ form
to avoid false positives from prose mentions of the path).
- groups/main/CLAUDE.md: prepended by the migration.
Existing groups need a one-time wipe of their agent-runner-src/ dir so
init re-populates from current host source — done locally before this
commit. Future host-side updates to container/skills/ or
container/agent-runner/src/ won't auto-propagate; that's the trade-off
for unconditional persistence and will be covered by host-mediated
refresh tools in a follow-up.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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