molecule-core/platform/migrations/030_audit_events.up.sql
Molecule AI Triage Operator 5f26313921 chore(migrations): rename 029_audit_events → 030_audit_events (collision with 029_workspace_hibernation)
PR #724 (workspace hibernation) claimed migration number 029.
Renaming to 030 to resolve the sequence collision before merging #651.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-17 16:36:52 +00:00

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1.7 KiB
SQL

-- 029_audit_events.up.sql
-- Append-only HMAC-chained agent event log for EU AI Act Annex III compliance.
-- Art. 12 record-keeping + Art. 13 transparency.
--
-- Each row is signed with HMAC-SHA256 and chained to the preceding row for
-- the same agent_id via prev_hmac, making the log tamper-evident.
-- See: molecule_audit/ledger.py and platform/internal/handlers/audit.go
CREATE TABLE IF NOT EXISTS audit_events (
id TEXT NOT NULL,
timestamp TIMESTAMPTZ NOT NULL,
agent_id TEXT NOT NULL,
session_id TEXT NOT NULL,
operation TEXT NOT NULL, -- task_start|llm_call|tool_call|task_end
input_hash TEXT, -- SHA-256 of input (privacy-preserving)
output_hash TEXT, -- SHA-256 of output
model_used TEXT, -- gen_ai.request.model or tool name
human_oversight_flag BOOLEAN NOT NULL DEFAULT false,
risk_flag BOOLEAN NOT NULL DEFAULT false,
prev_hmac TEXT, -- HMAC of prior row for this agent_id
hmac TEXT NOT NULL, -- HMAC of this row's canonical JSON
workspace_id UUID NOT NULL REFERENCES workspaces(id) ON DELETE CASCADE,
CONSTRAINT audit_events_pkey PRIMARY KEY (id)
);
CREATE INDEX IF NOT EXISTS idx_audit_events_agent_id ON audit_events (agent_id);
CREATE INDEX IF NOT EXISTS idx_audit_events_session_id ON audit_events (session_id);
CREATE INDEX IF NOT EXISTS idx_audit_events_workspace ON audit_events (workspace_id);
CREATE INDEX IF NOT EXISTS idx_audit_events_timestamp ON audit_events (timestamp DESC);