memory

name	memory
license	MIT
compatibility	Claude Code 2.1.76+. Requires memory MCP server.
description	Unified read-side memory operations including knowledge graph search, session context loading, decision timeline viewing, and Mermaid graph visualization. Subcommands: search, load, history, viz, status. Complements /ork:remember (write-side). Use when searching past decisions, loading context, or visualizing the knowledge graph.
argument-hint	[subcommand] [query]
context	inherit
version	2.0.1
author	OrchestKit
tags	["memory","graph","session","context","sync","visualization","history","search"]
user-invocable	true
allowed-tools	["Read","Grep","Glob","Bash","AskUserQuestion","mcp__memory__search_nodes","mcp__memory__read_graph"]
complexity	low
persuasion-type	collaborative
effort	low
model	haiku
metadata	{"category":"mcp-enhancement","mcp-server":"memory"}
triggers	{"keywords":["memory","recall","search memory","past decisions","knowledge graph","load context","prior decisions","what did we decide"],"examples":["search my memory for past database decisions","what did we decide about pagination last time","show me the knowledge graph"],"anti-triggers":["remember","save","store","commit","implement","explore"]}
paths	[".claude/memory/**",".claude/projects/**/memory/**"]

Memory - Read & Access Operations

Unified read-side memory skill with subcommands for searching, loading, syncing, history, and visualization.

Cross-session read strategy (Opus 4.7 / CC 2.1.111+): Opus 4.7 reads filesystem memory more reliably than 4.6. When loading context at session start, prefer the layered read order:

1. ~/.claude/projects/<slug>/memory/MEMORY.md (durable index — load first, always)
2. .claude/chain/state.json + most recent NN-*.json handoff (session continuation)
3. MCP mcp__memory__search_nodes for anything the filesystem index doesn't answer (typed graph traversal)

Layer 1 is cheap (small index file), Layer 2 is scoped (session-specific), Layer 3 is selective (only when needed). Avoid dumping the full knowledge graph into context — use the index to narrow the search first.

Argument Resolution

SUBCOMMAND = "$ARGUMENTS[0]"  # First token: search, load, history, viz, status
QUERY = "$ARGUMENTS[1]"       # Second token onward: search query or flags
# $ARGUMENTS is the full string (CC 2.1.59 indexed access)

Usage

/ork:memory search <query>  # Search knowledge graph
/ork:memory load             # Load context at session start
/ork:memory history          # View decision timeline
/ork:memory viz              # Visualize knowledge graph
/ork:memory status           # Show memory system health

---

CRITICAL: Use AskUserQuestion When No Subcommand

If invoked without a subcommand, ask the user what they want:

AskUserQuestion(
  questions=[{
    "question": "What memory operation do you need?",
    "header": "Operation",
    "options": [
      {"label": "search", "description": "Search decisions and patterns in knowledge graph", "markdown": "```\nSearch Knowledge Graph\n──────────────────────\n  query ──▶ mcp__memory ──▶ results\n\n  Flags:\n  --category  Filter by type\n  --agent     Scope to agent\n  --limit N   Max results\n  --global    Cross-project\n```"},
      {"label": "load", "description": "Load relevant context for this session", "markdown": "```\nLoad Session Context\n────────────────────\n  Auto-detect project ──▶\n  ┌────────────────────┐\n  │ Recent decisions   │\n  │ Active patterns    │\n  │ Project entities   │\n  └────────────────────┘\n  Flags: --project, --global\n```"},
      {"label": "history", "description": "View decision timeline", "markdown": "```\nDecision Timeline\n─────────────────\n  ┌──── Feb 28 ────────────┐\n  │ Used Postgres over Mongo│\n  ├──── Feb 27 ────────────┤\n  │ Adopted MVC pattern     │\n  ├──── Feb 26 ────────────┤\n  │ Chose JWT over sessions │\n  └────────────────────────┘\n  Flags: --since, --mermaid\n```"},
      {"label": "viz", "description": "Visualize knowledge graph as Mermaid", "markdown": "```\nKnowledge Graph Viz\n───────────────────\n  Entities ──▶ Mermaid diagram\n\n  [Project] ──uses──▶ [Postgres]\n      │                    │\n      └──has──▶ [Auth] ──uses──▶ [JWT]\n\n  Output: Mermaid code block\n```"},
      {"label": "status", "description": "Check memory system health", "markdown": "```\nMemory Health Check\n───────────────────\n  ┌─────────────────────┐\n  │ MCP server    ✓/✗   │\n  │ Entity count  N     │\n  │ Relation count N    │\n  │ Last write    date  │\n  │ Graph size    N KB  │\n  └─────────────────────┘\n```"}
    ],
    "multiSelect": false
  }]
)

---

Subcommands

Load details: Read("${CLAUDE_SKILL_DIR}/references/memory-commands.md") for full usage, flags, output formats, and context-aware result limits for each subcommand.

Subcommand	Purpose
search	Search past decisions, patterns, entities. Supports --category (maps to metadata.category), --limit, --agent (scopes by agent_id), --global filter flags
load	Auto-load relevant memories at session start. Supports --project, --global
history	Decision timeline with table, Mermaid, or JSON output. Supports --since, --mermaid
viz	Render knowledge graph as Mermaid diagram. See also Read("${CLAUDE_SKILL_DIR}/references/mermaid-patterns.md")
status	Memory system health check

---

Workflow

1. Parse Subcommand

Extract first argument as subcommand
If no subcommand -> AskUserQuestion
Validate subcommand is one of: search, load, history, viz, status
Parse remaining flags
Check for --agent <agent-id> flag → agent_id: "ork:{agent-id}"

2. Execute Subcommand

Route to appropriate handler based on subcommand.

3. Report Results

Format output appropriate to the operation.

---

Rules Quick Reference

Rule	Impact	What It Covers
entity-extraction-patterns (load ${CLAUDE_SKILL_DIR}/rules/entity-extraction-patterns.md)	HIGH	Entity types, relation types, graph query semantics
deduplication-strategy (load ${CLAUDE_SKILL_DIR}/rules/deduplication-strategy.md)	HIGH	Edit-over-Write pattern, anchor-based insertion, verification

---

Session Resume

Load details: Read("${CLAUDE_SKILL_DIR}/references/session-resume-patterns.md") for CC 2.1.31 resume hints, context capture before ending, and resume workflows for PRs, issues, and implementations.

---

Related Skills

• ork:remember - Store decisions and patterns (write-side)

---

Error Handling

• If graph empty for viz: Show helpful message about using /ork:remember
• If subcommand invalid: Show usage help
• If memory files corrupt: Report and offer repair
• If search query empty: Show recent entities instead
• If no search results: Suggest alternatives