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feat(aep): add deny capability decisions and output_taint_labels #6

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Merged
HainingYin merged 1 commit into from
Jul 3, 2026
Merged

feat(aep): add deny capability decisions and output_taint_labels #6

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16 changes: 16 additions & 0 deletions apps/worker/src/trajectoryExport.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -413,6 +413,8 @@ export async function buildAEPEvidence(opts: {
output_refs?: OutputRef[];
/** Optional: model provider string (e.g. "anthropic", "openai"). */
model_provider?: string;
/** Optional: tools denied by policy/firewall — emitted as deny capability decisions. */
denied_tools?: string[];
/** Optional: creation timestamp override (ms) — useful for deterministic tests. */
created_at_ms?: number;
/**
Expand Down Expand Up @@ -456,12 +458,14 @@ export async function buildAEPEvidence(opts: {
const ev = toolCallEvents[i];
const toolName = (ev.data as Record<string, unknown>).name as string | undefined;
const isStateChanging = Boolean(toolName && STATE_CHANGING_TOOLS.has(toolName));
const isUntrusted = Boolean((ev.data as Record<string, unknown>).isUntrusted);
emitter.addAction({
action_id: `action-${i}`,
tool_name: toolName ?? "unknown",
state_changing: isStateChanging,
evidence_refs: [],
timestamp_ms: ev.timestamp_ms ?? Date.now() + i,
...(isUntrusted ? { output_taint_labels: ["external", "user-supplied"] } : {}),
});
}
}
Expand Down Expand Up @@ -504,6 +508,18 @@ export async function buildAEPEvidence(opts: {
reason_code: "auto_derived",
});
}
// Emit deny decisions for tools blocked by policy/firewall.
if (opts.denied_tools) {
for (const name of opts.denied_tools) {
emitter.addCapabilityDecision({
capability: name,
subject: "bscode-agent",
resource: "bscode-workspace",
decision: "deny",
reason_code: "policy_denied",
});
}
}
}

// ── Budget ledger ────────────────────────────────────────────────────────
Expand Down
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