diff --git a/AGENTS.md b/AGENTS.md
index 41667fac..d910cf40 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -268,6 +268,7 @@ fail-closed and only pauses when the agent actually proposed a reviewed output.
 │           ├── approval-summary/ # Safe-outputs summary renderer (bundled to approval-summary.js; end-of-Agent-job summary tab)
 │           ├── github-app-token/ # GitHub App token minter (bundled to github-app-token.js; mints installation token in Agent + Detection when engine.github-app-token is set)
 │           ├── executor-e2e/ # Stage 3 safe-output E2E test harness (not a bundle; runs deterministic scenarios against a real ADO project and files a GitHub issue on failure)
+│           ├── trigger-e2e/ # Trigger-condition (gate / synth-PR) E2E test harness (not a bundle; queues a victim pipeline under a battery of trigger scenarios and files a GitHub issue on failure)
 │           ├── prepare-pr-base/ # create-pull-request base-ref preparer (bundled to prepare-pr-base.js; fetches/deepens target branch so mcp.rs finds a diff base on shallow-default pools — issue #1413; emitted in BOTH the Agent job and the SafeOutputs job before the executor's worktree add — issue #1453)
 │           └── shared/   # Shared modules across bundles (auth, ado-client, env-facts, types.gen.ts)
 ├── tests/                # Integration tests and fixtures
diff --git a/docs/ado-script.md b/docs/ado-script.md
index 10a7dd81..a55e1e1b 100644
--- a/docs/ado-script.md
+++ b/docs/ado-script.md
@@ -106,6 +106,15 @@ pipeline** as runtime helpers. Today it produces thirteen bundles:
 > `NON_BUNDLE_DIRS` in `src/__tests__/bundle-coverage.test.ts` so the
 > shipped-bundle guard ignores it. The compiler never references it.
 
+> **Test-only, not shipped: `trigger-e2e`.** The workspace also contains a
+> `src/trigger-e2e/` harness that drives the deterministic trigger-condition
+> (gate / synth-PR) E2E suite. It queues a victim pipeline under a battery of
+> real trigger scenarios, asserts the observable gate decision (build tags +
+> result), and files a GitHub issue on failure. It is **not** a runtime bundle:
+> it is built separately by `npm run build:trigger-e2e` and listed in
+> `NON_BUNDLE_DIRS` so the shipped-bundle guard ignores it. The compiler never
+> references it.
+
 ## What `gate.js` does
 
 `gate.js` is a single-shot Node program that runs as a step in the