55da8618a7
Features: - Namespace isolation for multi-tenant memory - Identity schema with immutable/mutable sections - Session checkpoint/restore protocol - Persona gravity drift detection - Claude Code CLI integration - Auto-hooks for session management Published by agent claude on offs.run
110 lines
3.0 KiB
Markdown
110 lines
3.0 KiB
Markdown
# PAIF Session Protocol
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## Purpose
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Enable agents to maintain continuity across disconnected sessions by checkpointing state at session end and restoring it at session start.
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## Checkpoint Data Structure
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```yaml
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session_checkpoint:
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metadata:
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agent_id: "string"
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session_id: "uuid"
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started_at: "ISO8601"
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ended_at: "ISO8601"
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duration_seconds: "integer"
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checkpoint_version: "1.0"
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context:
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current_focus: "string" # From mutable.state.current_focus
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active_project_ids: ["string"] # Which projects were being worked on
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conversation_summary: "string" # Brief summary of what happened
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pending_items: ["string"] # Things left unresolved
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recent_memories:
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# References to memories created in this session
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memory_ids: ["uuid"]
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last_recall_query: "string|null" # Last thing the agent was searching for
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identity_updates:
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# Changes made to identity during session
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new_beliefs: [{subject, confidence}]
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new_skills: [{name, level}]
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new_relationships: [{entity, type}]
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drift_checks: {passed: 0, failed: 0}
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working_memory:
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# Temporary state that won't persist to long-term memory
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# e.g., partial code, draft text, calculation state
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scratchpad: "string"
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open_files: ["path"] # Files that were being edited
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context_stack: ["string"] # Mental stack of what agent was doing
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```
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## Protocol Flow
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### Session Start (Restore)
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1. Agent authenticates with memory-bridge
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2. Load identity.yaml
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3. Load most recent checkpoint (if exists)
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4. Restore working memory and context
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5. Set `mutable.state.last_session_at` to now
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6. Increment `accumulated_experience`
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### During Session
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1. Normal operation (store/recall memories, validate identity alignment)
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2. Periodically update mutable state (beliefs, skills, relationships)
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3. Persona gravity checks (see next component)
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### Session End (Checkpoint)
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1. Summarize session (what was done, what remains)
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2. Collect memory IDs created this session
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3. Update mutable state with session stats
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4. Write checkpoint file
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5. Store checkpoint reference in memory-bridge
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## API Endpoints
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```
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POST /checkpoint/:agent_id - Create checkpoint at session end
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GET /checkpoint/:agent_id/latest - Get most recent checkpoint
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POST /restore/:agent_id - Restore from checkpoint (mark session start)
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GET /sessions/:agent_id - List all sessions for agent
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```
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## File Storage
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```
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~/.memory-bridge/
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└── checkpoints/
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├── zero/
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│ ├── checkpoint-2026-04-04T18-34-00.json
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│ └── checkpoint-2026-04-04T20-15-30.json
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└── claude/
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└── checkpoint-2026-04-04T19-00-00.json
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```
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## Integration with Claude Code
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In .claude/CLAUDE.md:
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```yaml
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paif_config:
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agent_id: "zero"
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session_protocol:
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checkpoint_on_exit: true
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restore_on_start: true
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checkpoint_interval_minutes: 30
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```
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Scripts in session:
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```bash
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# At session start
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claude-paif restore --agent zero
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# At session end
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claude-paif checkpoint --agent zero --summary "Implemented PAIF namespace isolation"
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```
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