Async collaborative brainstorming between multiple human+Claude pairs — shared workspaces with write-once block files, no merge conflicts
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Async collaborative thinking between multiple human+Claude pairs. Each participant works in their own Claude Code session, saving progress to a shared workspace. No merge conflicts by design — and the journey is preserved, not just the conclusion.
Two people (each with their own Claude Code session) work on the same topic asynchronously. Every /collab save writes a uniquely-named markdown file — nobody edits anyone else's files. When a colleague runs /collab join, all files are assembled into a narrative handoff brief so they can pick up where you left off.
Simon + Claude Dan + Claude
│ │
├─ /collab save │
│ → simon_20260314T142001Z.md │
│ → git push │
│ │
│ /collab join ──────┤
│ ← git pull │
│ ← handoff brief │ (resolves [[wikilinks]] inline)
│ │
│ /collab save ──┤
│ → dan_...Z.md │
│ → git push │
│ │
├─ /collab refresh │
│ ← sees Dan's new block │
│ │
├─ /collab compress │ journey-style _summary.md
│ │
├─ /collab reflect skill-project │ cross-session _patterns.md
│ │ (only after 2+ closed sessions)
On launch, a SessionStart hook nudges each participant about active sessions they've touched — no more "which session was I in?" at the start of the day.
Cross-session recall is done via markdown primitives, not embeddings: [[session-NNN#phase-N]] wikilinks between summaries for graph navigation, /collab reflect to extract patterns from closed sessions into _patterns.md, and tiered retrieval in /collab catchup (compact index → timeline → full block) for bounded token cost. No vector DB, no index to rebuild, no model lock-in. If you'd rather run embeddings yourself, the folder is plain markdown — point any RAG tool at it.
Not just coding. Any topic two or more people want to think through together, asynchronously, with Claude as a partner in each seat.
Research and analysis
Design and decision-making (pre-code)
Coding work where the why matters
What sets it apart for coding: a finished branch tells you what two colleagues agreed on. Collab Session captures why — the decisions, the disagreements, the approaches tried and abandoned. /collab compress writes a journey-style narrative with contributor attribution; /collab reflect surfaces patterns across closed sessions. Six months later, the next person on the codebase can read the lineage, not just the commit.
claude plugin add AI-Collab-Skill/collab-session-skill
# 1. Set your identity (once per machine)
/collab whoami simon
# 2. Set up a shared workspace (once per team)
/collab init my-project
# Choose: drive (network/cloud folder) or mini-repo (dedicated git repo)
# 3. Start a session
/collab new my-project api-design
# Answer: goal, prior session?
# 4. Brainstorm with Claude, then save
/collab save
# Secrets in the chat? Wrap them in <private>...</private> — redacted on save.
# 5. Colleague joins from their machine
/collab join my-project api-design
# Gets a narrative handoff brief, picks up where you left off.
# 6. After several saves, compress into a journey summary
/collab compress
# 7. Topic done — freeze the session
/collab close
# 8. After 2+ closed sessions, extract recurring patterns
/collab reflect my-project
# Writes _patterns.md: recurring themes, repeated dead ends, chronic blockers.
npx claudepluginhub ai-collab-skill/collab-session-skill --plugin collab-sessionFolder structure + collaboration protocol so AI sessions can resume project context after compaction or window switch. One brain/ folder, 5 core files (PROJECT/MAP/STATUS/DECISIONS/HANDOFF), and a topic taxonomy.
Multi-project context management: switch projects, save/load sessions. Designed for non-CLI interfaces (Cowork desktop, Telegram).
Session wrap-up workflow with multi-agent analysis pipeline for documentation, automation, learning, and follow-up suggestions
Connect Claude Code to Stash — stream activity to history and collaborate in workspaces.
An agile retrospective skill for your Claude collaboration sessions. Capture what you learned. Apply the fix. Make the next session better.
Persistent knowledge workspace for Claude Code — structured files, versioning, search, and knowledge graph across sessions