How do I install the Codebase Memory skill?

Run npx skillmds@latest add fukukei23/codebase-memory in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Codebase Memory skill do?

Codebase Memory — Knowledge Graph Tools It is listed under Coding & Dev Tools on SkillMD.

Is Codebase Memory safe to use?

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Which AI agents work with Codebase Memory?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Codebase Memory free to use?

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Who published Codebase Memory?

fukukei23 (@fukukei23) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Codebase Memory by fukukei23 — Agent Skill

Name: Codebase Memory
Rating: 4.2 (5 reviews)
Author: fukukei23

File contents

Codebase Memory — Knowledge Graph Tools

Graph tools return precise structural results in ~500 tokens vs ~80K for grep.

Quick Decision Matrix

Question	Tool call
Who calls X?	`trace_path(direction="inbound")`
What does X call?	`trace_path(direction="outbound")`
Full call context	`trace_path(direction="both")`
Find by name pattern	`search_graph(name_pattern="...")`
Dead code	`search_graph(max_degree=0, exclude_entry_points=true)`
Cross-service edges	`query_graph` with Cypher
Impact of local changes	`detect_changes()`
Risk-classified trace	`trace_path(risk_labels=true)`
Text search	`search_code` or Grep

Exploration Workflow

list_projects — check if project is indexed
get_graph_schema — understand node/edge types
search_graph(label="Function", name_pattern=".*Pattern.*") — find code
get_code_snippet(qualified_name="project.path.FuncName") — read source

Tracing Workflow

search_graph(name_pattern=".*FuncName.*") — discover exact name
trace_path(function_name="FuncName", direction="both", depth=3) — trace
detect_changes() — map git diff to affected symbols

Quality Analysis

Dead code: search_graph(max_degree=0, exclude_entry_points=true)
High fan-out: search_graph(min_degree=10, relationship="CALLS", direction="outbound")
High fan-in: search_graph(min_degree=10, relationship="CALLS", direction="inbound")

14 MCP Tools

index_repository, index_status, list_projects, delete_project, search_graph, search_code, trace_path, detect_changes, query_graph, get_graph_schema, get_code_snippet, get_architecture, manage_adr, ingest_traces

Edge Types

CALLS, HTTP_CALLS, ASYNC_CALLS, IMPORTS, DEFINES, DEFINES_METHOD, HANDLES, IMPLEMENTS, OVERRIDE, USAGE, FILE_CHANGES_WITH, CONTAINS_FILE, CONTAINS_FOLDER, CONTAINS_PACKAGE

Cypher Examples (for query_graph)

MATCH (a)-[r:HTTP_CALLS]->(b) RETURN a.name, b.name, r.url_path, r.confidence LIMIT 20
MATCH (f:Function) WHERE f.name =~ '.*Handler.*' RETURN f.name, f.file_path
MATCH (a)-[r:CALLS]->(b) WHERE a.name = 'main' RETURN b.name

Gotchas

search_graph(relationship="HTTP_CALLS") filters nodes by degree — use query_graph with Cypher to see actual edges.
query_graph has a 200-row cap — use search_graph with degree filters for counting.
trace_path needs exact names — use search_graph(name_pattern=...) first.
direction="outbound" misses cross-service callers — use direction="both".
Results default to 10 per page — check has_more and use offset.

---name: codebase-memorydescription: Codebase Memory — Knowledge Graph Tools---# Codebase Memory — Knowledge Graph ToolsGraph tools return precise structural results in ~500 tokens vs ~80K for grep.## Quick Decision Matrix| Question | Tool call ||----------|----------|| Who calls X? | `trace_path(direction="inbound")` || What does X call? | `trace_path(direction="outbound")` || Full call context | `trace_path(direction="both")` || Find by name pattern | `search_graph(name_pattern="...")` || Dead code | `search_graph(max_degree=0, exclude_entry_points=true)` || Cross-service edges | `query_graph` with Cypher || Impact of local changes | `detect_changes()` || Risk-classified trace | `trace_path(risk_labels=true)` || Text search | `search_code` or Grep |## Exploration Workflow1. `list_projects` — check if project is indexed2. `get_graph_schema` — understand node/edge types3. `search_graph(label="Function", name_pattern=".*Pattern.*")` — find code4. `get_code_snippet(qualified_name="project.path.FuncName")` — read source## Tracing Workflow1. `search_graph(name_pattern=".*FuncName.*")` — discover exact name2. `trace_path(function_name="FuncName", direction="both", depth=3)` — trace3. `detect_changes()` — map git diff to affected symbols## Quality Analysis- Dead code: `search_graph(max_degree=0, exclude_entry_points=true)`- High fan-out: `search_graph(min_degree=10, relationship="CALLS", direction="outbound")`- High fan-in: `search_graph(min_degree=10, relationship="CALLS", direction="inbound")`## 14 MCP Tools`index_repository`, `index_status`, `list_projects`, `delete_project`,`search_graph`, `search_code`, `trace_path`, `detect_changes`,`query_graph`, `get_graph_schema`, `get_code_snippet`, `get_architecture`,`manage_adr`, `ingest_traces`## Edge TypesCALLS, HTTP_CALLS, ASYNC_CALLS, IMPORTS, DEFINES, DEFINES_METHOD,HANDLES, IMPLEMENTS, OVERRIDE, USAGE, FILE_CHANGES_WITH,CONTAINS_FILE, CONTAINS_FOLDER, CONTAINS_PACKAGE## Cypher Examples (for query_graph)```MATCH (a)-[r:HTTP_CALLS]->(b) RETURN a.name, b.name, r.url_path, r.confidence LIMIT 20MATCH (f:Function) WHERE f.name =~ '.*Handler.*' RETURN f.name, f.file_pathMATCH (a)-[r:CALLS]->(b) WHERE a.name = 'main' RETURN b.name```## Gotchas1. `search_graph(relationship="HTTP_CALLS")` filters nodes by degree — use `query_graph` with Cypher to see actual edges.2. `query_graph` has a 200-row cap — use `search_graph` with degree filters for counting.3. `trace_path` needs exact names — use `search_graph(name_pattern=...)` first.4. `direction="outbound"` misses cross-service callers — use `direction="both"`.5. Results default to 10 per page — check `has_more` and use `offset`.

Frequently asked questions

Codebase Memory