diff --git a/workflows/sense-generator/roles/coder/index.ts b/workflows/sense-generator/roles/coder/index.ts
index 0f1d328..5c9966d 100644
--- a/workflows/sense-generator/roles/coder/index.ts
+++ b/workflows/sense-generator/roles/coder/index.ts
@@ -1,8 +1,14 @@
 import { createCursorRole } from "@uncaged/nerve-workflow-utils";
+import { readFileSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
 import { resolveDashScopeProvider, NERVE_ROOT, SENSES_DIR } from "../shared.js";
 import { coderMetaSchema } from "../types.js";
 import type { SenseMeta } from "../types.js";
 
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const PROMPT = readFileSync(join(__dirname, "prompt.md"), "utf-8");
+
 export async function buildCoderRole() {
   const provider = await resolveDashScopeProvider();
   if (provider === null) {
@@ -12,19 +18,10 @@ export async function buildCoderRole() {
     cwd: NERVE_ROOT,
     mode: "default",
     prompt: async (threadId) =>
-      `Read the workflow thread for the planner's sense design: \`nerve thread ${threadId}\`
-
-Implement the sense. Create exactly:
-1. The sense directory under ${SENSES_DIR}/<sense-name>/
-2. index.js — export async function compute(db, _peers), import schema from "./schema.ts"
-3. schema.ts — drizzle-orm/sqlite-core
-4. migrations/0001_init.sql — must match schema.ts
-5. Update ${NERVE_ROOT}/nerve.yaml — add sense config + reflex entry
-
-Follow the patterns from existing senses. Create all files now.`,
-    extract: {
-      provider,
-      schema: coderMetaSchema,
-    },
+      PROMPT
+        .replace("{{threadId}}", threadId)
+        .replace("{{sensesDir}}", SENSES_DIR)
+        .replace("{{nerveRoot}}", NERVE_ROOT),
+    extract: { provider, schema: coderMetaSchema },
   });
 }
diff --git a/workflows/sense-generator/roles/coder/prompt.md b/workflows/sense-generator/roles/coder/prompt.md
new file mode 100644
index 0000000..b8ac1dd
--- /dev/null
+++ b/workflows/sense-generator/roles/coder/prompt.md
@@ -0,0 +1,10 @@
+Read the workflow thread for the planner's sense design: `nerve thread {{threadId}}`
+
+Implement the sense. Create exactly:
+1. The sense directory under {{sensesDir}}/<sense-name>/
+2. index.js — export async function compute(db, _peers), import schema from "./schema.ts"
+3. schema.ts — drizzle-orm/sqlite-core
+4. migrations/0001_init.sql — must match schema.ts
+5. Update {{nerveRoot}}/nerve.yaml — add sense config + reflex entry
+
+Follow the patterns from existing senses. Create all files now.
diff --git a/workflows/sense-generator/roles/planner/index.ts b/workflows/sense-generator/roles/planner/index.ts
index 9e49c4c..b52cb84 100644
--- a/workflows/sense-generator/roles/planner/index.ts
+++ b/workflows/sense-generator/roles/planner/index.ts
@@ -1,8 +1,13 @@
 import { createCursorRole } from "@uncaged/nerve-workflow-utils";
+import { readFileSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
 import { resolveDashScopeProvider, buildSenseExamples, getNerveYaml, NERVE_ROOT } from "../shared.js";
 import { plannerMetaSchema } from "../types.js";
 import type { SenseMeta } from "../types.js";
 
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const PROMPT = readFileSync(join(__dirname, "prompt.md"), "utf-8");
 const senseExamples = buildSenseExamples();
 const nerveYaml = getNerveYaml();
 
@@ -15,30 +20,10 @@ export async function buildPlannerRole() {
     cwd: NERVE_ROOT,
     mode: "ask",
     prompt: async (threadId) =>
-      `You are planning a new Nerve sense.
-
-Read the workflow thread for the user's request: \`nerve thread ${threadId}\`
-
-Pick a good kebab-case name for this sense. Produce a PLAN (not code) in markdown:
-
-## Sense Design
-### Name — kebab-case
-### Fields — name, type (integer/real/text), description
-### Compute Logic — step-by-step, specific Node.js APIs or shell commands
-### Trigger Config — group, interval, throttle, timeout
-
-Reference senses:
-${senseExamples}
-
-Current nerve.yaml:
-\`\`\`yaml
-${nerveYaml}
-\`\`\`
-
-Output ONLY the plan. Be precise and implementation-ready.`,
-    extract: {
-      provider,
-      schema: plannerMetaSchema,
-    },
+      PROMPT
+        .replace("{{threadId}}", threadId)
+        .replace("{{senseExamples}}", senseExamples)
+        .replace("{{nerveYaml}}", nerveYaml),
+    extract: { provider, schema: plannerMetaSchema },
   });
 }
diff --git a/workflows/sense-generator/roles/planner/prompt.md b/workflows/sense-generator/roles/planner/prompt.md
new file mode 100644
index 0000000..434e6ef
--- /dev/null
+++ b/workflows/sense-generator/roles/planner/prompt.md
@@ -0,0 +1,21 @@
+You are planning a new Nerve sense.
+
+Read the workflow thread for the user's request: `nerve thread {{threadId}}`
+
+Pick a good kebab-case name for this sense. Produce a PLAN (not code) in markdown:
+
+## Sense Design
+### Name — kebab-case
+### Fields — name, type (integer/real/text), description
+### Compute Logic — step-by-step, specific Node.js APIs or shell commands
+### Trigger Config — group, interval, throttle, timeout
+
+Reference senses:
+{{senseExamples}}
+
+Current nerve.yaml:
+```yaml
+{{nerveYaml}}
+```
+
+Output ONLY the plan. Be precise and implementation-ready.