Execute Cypher queries against AgentDB's graph backend. Use when the user wants to write a custom traversal that the standard tools don't cover, or when explaining graph state.
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Run arbitrary Cypher against the AgentDB graph backend. The native binding accepts standard openCypher; AgentDB also adds a few extensions (uplift, confidence properties on edges).
agentdb_causal_* tools don't coveragentdb_causal_query(
cypher: <query string>,
params?: { ... }
)
Returns: { rows, stats: { execMs, rowsMatched, rowsReturned } }
-- Top 10 most-cited skills
MATCH (s:Skill)<-[r:references]-(:Episode)
RETURN s.name, count(r) AS cites
ORDER BY cites DESC LIMIT 10
-- Find hub nodes (high in-degree)
MATCH (n)<-[r]-()
RETURN n.id, n.type, count(r) AS inDegree
ORDER BY inDegree DESC LIMIT 20
-- Walk supersedes chain backwards from current ADR
MATCH p=(current:ADR {id: 'ADR-046'})-[:supersedes*]->(ancestor:ADR)
RETURN [n IN nodes(p) | n.title]
-- Cycle detection (worth a warning)
MATCH p=(n)-[:caused*1..5]->(n)
RETURN p LIMIT 5
The agentdb_causal_query tool accepts arbitrary Cypher, including writes (CREATE, DELETE, DETACH DELETE). For destructive operations, prefer the typed delete tools (agentdb_causal_node_delete, agentdb_causal_edge_delete) — they enforce cascade semantics and write to the attestation log.
params to avoid Cypher injection.MATCH (n) DETACH DELETE n (deletes everything). Always scope the match.WHERE id IN [...] works — the binding's per-call overhead adds up.No reviews yet. Tell others what you thought.
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