diff --git a/README.md b/README.md
index 07af026..a38ba3f 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ The runtime currently exposes:
 - `GET /health` — health and signer/verifier readiness.
 - `GET /healthz` — alias for `/health`.
 - `POST /verify` — runtime verification API for receipt hash/signature checks, with optional ENS lookup and optional schema validation.
+- `POST /execute` — unified execution endpoint; dispatches to the handler for `execution.verb` or `verb`.
 - `POST /<verb>/v1.1.0` for the verbs enabled by `ENABLED_VERBS`.
 
 The default enabled verbs are:
@@ -45,12 +46,11 @@ The default enabled verbs are:
 
 ## Debug routes
 
-The runtime also implements these gated debug routes:
+The runtime implements these gated debug routes:
 
-- `GET /debug/env`
-- `GET /debug/enskey`
-- `GET /debug/validators`
-- `POST /debug/prewarm`
+- `GET /debug/signer` — active signer state, kid, fingerprint, and boot errors.
+- `GET /debug/ens` — ENS resolution result for the configured signer name (accepts `?signer=` and `?refresh=1`).
+- `GET /debug/schema/:verb` — schema compilation status for a given verb.
 
 They are available only when both of these are set:
 
@@ -59,8 +59,6 @@ They are available only when both of these are set:
 
 Requests must present the token either as `Authorization: Bearer <token>` or `X-Debug-Token: <token>`. When debug access is not enabled or the token is missing or wrong, these routes return `404`.
 
-There is no `/debug/schemafetch` route in the current implementation.
-
 ## Receipt model
 
 Verb routes return a JSON object with a signed `receipt` and optional unsigned `runtime_metadata`.
@@ -126,7 +124,7 @@ When `schema=1`, schema validation uses the receipt verb to compute a `v1.1.0` r
 
 When a commons verb request omits `execution`, the runtime fabricates receipt execution defaults from the live route version: `entry: "https://runtime.commandlayer.org/execute"`, `verb: "<verb>"`, `version: "1.1.0"`, and `class: "commons"`. Commercial/payment-aware behavior belongs in the separate commercial runtime and is intentionally out of scope here.
 
-When `VERIFY_SCHEMA_CACHED_ONLY=1` (the default), `/verify?schema=1` returns HTTP `202` with `validator_not_warmed_yet` if the validator for that verb has not been compiled yet. `POST /debug/prewarm` can queue validator warmup, and `GET /debug/validators` shows cache state.
+When `VERIFY_SCHEMA_CACHED_ONLY=1` (the default), `/verify?schema=1` returns HTTP `202` with `validator_not_warmed_yet` if the validator for that verb has not been compiled yet. `GET /debug/schema/:verb` can report validator cache state and trigger compilation.
 
 If `/verify` exceeds `VERIFY_MAX_MS`, the runtime returns HTTP `502` with `failure_type: "availability"`, `retryable: true`, and the message `Verification service did not respond. Receipt may still be valid; retry recommended.` Clients should treat that as transient service unavailability, not a cryptographic proof failure.
 
diff --git a/src/middleware/rateLimit.mjs b/src/middleware/rateLimit.mjs
index 8c1d063..fe160f5 100644
--- a/src/middleware/rateLimit.mjs
+++ b/src/middleware/rateLimit.mjs
@@ -1,4 +1,4 @@
-// Simple in-memory rate limiter — no external deps, respects X-Forwarded-For.
+// Simple in-memory rate limiter — no external deps, respects Express trust proxy.
 // Replace with express-rate-limit + Redis for multi-instance deployments.
 
 /**
@@ -8,10 +8,11 @@ export function createRateLimiter({ windowMs = 60_000, max = 120, skipPaths = []
   // ip -> { count, resetAt }
   const store = new Map();
 
+  // Use req.ip (resolved by Express via trust proxy setting) rather than
+  // reading X-Forwarded-For directly. Reading the raw header allows any caller
+  // to inject an arbitrary IP string and bypass per-IP rate limiting.
   function getIp(req) {
-    const xff = req.headers["x-forwarded-for"];
-    if (xff) return String(xff).split(",")[0].trim();
-    return req.socket?.remoteAddress || "unknown";
+    return req.ip || req.socket?.remoteAddress || "unknown";
   }
 
   function cleanup() {
diff --git a/tests/smoke.mjs b/tests/smoke.mjs
index 21f0ed2..f6a8100 100644
--- a/tests/smoke.mjs
+++ b/tests/smoke.mjs
@@ -178,15 +178,16 @@ async function main() {
     const health = await waitForHealthy(baseUrl, proc);
     assert.equal(health.status, 200);
     if (health.json.signer_ok !== true) {
-  const dbg = await httpJson(`${baseUrl}/debug/env`, {
+  // /debug/signer is the implemented debug endpoint (not /debug/env)
+  const dbg = await httpJson(`${baseUrl}/debug/signer`, {
     method: "GET",
     headers: { "X-Debug-Token": "smoke" },
   });
 
   console.error("health:", JSON.stringify(health.json, null, 2));
-  console.error("debug/env:", JSON.stringify(dbg.json, null, 2));
+  console.error("debug/signer:", JSON.stringify(dbg.json, null, 2));
 
-  throw new Error("signer_ok must be true (see debug/env above)");
+  throw new Error("signer_ok must be true (see debug/signer above)");
 }
 
     const describeBody = {