Cognee Memory Search

Search both session memory and the permanent knowledge graph, optionally filtered by data category.

Automatic session search

Session memory is searched automatically on every user prompt via the user-prompt-submit hook. You do not need to run this skill to access current-session context.

Data categories

Knowledge is organized into three categories via node_set:

Category	Node set	Contains
user	user_context	User preferences, corrections, personal facts
project	project_docs	Repository docs, code context, architecture decisions
agent	agent_actions	Tool call logs, reasoning traces, generated artifacts

Instructions

Use the cognee_recall tool to search Cognee memory. It calls the running Cognee server (POST /api/v1/recall) directly in-process — no shell, no subprocess.

One broad search is usually enough — the user-prompt-submit hook already injects session/trace/graph context every turn, so avoid running many targeted searches.

Search via the cognee_recall tool

cognee_recall(query="your search query", top_k=10, scope="auto")

• scope="auto" — session cache + permanent graph (default)
• scope="graph" — permanent graph only
• scope="session" — current session only

Filter by category (optional)

Categories (user_context / project_docs / agent_actions) filter by node set. Use a direct curl to pass node_name:

curl -s -X POST "${COGNEE_BASE_URL:-http://localhost:8011}/api/v1/recall" \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: ${COGNEE_API_KEY:-}" \
  -d '{"query": "...", "top_k": 5, "only_context": true, "scope": ["graph"], "node_name": ["project_docs"]}'

Ground-truth a suspicious result (debugging)

The server is authoritative. If a search returns empty but you expect content, confirm directly — do not conclude "not found" from an empty result without checking:

curl -s -X POST "${COGNEE_BASE_URL:-http://localhost:8011}/api/v1/recall" \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: ${COGNEE_API_KEY:-}" \
  -d '{"query": "...", "top_k": 5, "only_context": true, "scope": ["graph"]}'

If the response is an {"error": ...} object rather than a list, the server was reachable but rejected/failed the request — that's an error, not "no results".

Understanding results

Results include a _source field:

• "session" — from the session cache (current conversation)
• "graph" — from the permanent knowledge graph

Session entries tagged with [category:agent] are automatic tool call logs.

Decision table

Signal	Action
Need current session context	Already automatic, no action needed
User explicitly says "search cognee"	cognee_recall(query="...")
"what does the codebase do" / "what did we do last time"	cognee_recall(query="...", scope="graph")
Need a specific category	use the node_name curl form above
Auto context insufficient	cognee_recall(query="...", scope="session")
Result empty but you expect content	Ground-truth via the curl above before concluding "not found"