diff --git a/core/test/report-command-paths.test.js b/core/test/report-command-paths.test.js
new file mode 100644
index 000000000..3c2f2534c
--- /dev/null
+++ b/core/test/report-command-paths.test.js
@@ -0,0 +1,36 @@
+import assert from 'node:assert/strict'
+import { existsSync, readFileSync, statSync } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { test } from 'node:test'
+import { fileURLToPath } from 'node:url'
+
+const ROOT = join(dirname(fileURLToPath(import.meta.url)), '..', '..')
+const REPORT = join(ROOT, 'docs', 'reports', '2026-10-26-turn-input-split.md')
+
+// Every `node <script> ...` token a report prints, with the line it sits on, so a
+// reader who copies a command gets one the tree can actually run.
+function nodeCommands(text) {
+  const found = []
+  text.split('\n').forEach((line, index) => {
+    for (const match of line.matchAll(/\bnode\s+([\w./-]+\.(?:mjs|cjs|js))\b/g)) {
+      found.push({ line: index + 1, path: match[1] })
+    }
+  })
+  return found
+}
+
+test('the node-command reader finds a script and its line', () => {
+  assert.deepEqual(nodeCommands('run: node dev/x.mjs --flag'), [{ line: 1, path: 'dev/x.mjs' }])
+  // A bare interpreter invocation with no script after it is not a command path.
+  assert.deepEqual(nodeCommands('node --version'), [])
+})
+
+test('every node command in the turn-split report names a script that exists at the tree root', () => {
+  const commands = nodeCommands(readFileSync(REPORT, 'utf8'))
+  assert.ok(commands.length > 0, 'the report prints at least one node command; finding none proves nothing')
+
+  const missing = commands
+    .filter((command) => !existsSync(join(ROOT, command.path)) || !statSync(join(ROOT, command.path)).isFile())
+    .map((command) => `line ${command.line}: node ${command.path}`)
+  assert.deepEqual(missing, [], `commands the report prints but the tree cannot run:\n${missing.join('\n')}`)
+})
diff --git a/docs/reports/2026-10-26-turn-input-split.md b/docs/reports/2026-10-26-turn-input-split.md
index fa1e68353..8ed5fcda5 100644
--- a/docs/reports/2026-10-26-turn-input-split.md
+++ b/docs/reports/2026-10-26-turn-input-split.md
@@ -121,7 +121,7 @@ The tool schemas are **79%** of the fixed block's characters. The group notice p
 
 ## 5. Tool results
 
-`node dev/turn-split.mjs --stats` prints the `## Tool results` block: the `tool/result` count, the characters added across the turn, the largest single result, the share by tool, what is still on the last call's surface, and the derived tokens carried.
+`node core/dev/turn-split.mjs --stats` prints the `## Tool results` block: the `tool/result` count, the characters added across the turn, the largest single result, the share by tool, what is still on the last call's surface, and the derived tokens carried.
 
 | Measure | Value | Source |
 | --- | --- | --- |
@@ -162,7 +162,7 @@ A checkpoint buys back roughly twenty minutes of growth at this rate; the fixed
 
 ## 7. Fan-out in the group
 
-`node dev/turn-split.mjs --stats --room <room session id>` prints the `## Fan-out` block: per-message member-Bot and member-turn counts (10-minute window), the day totals of the member Sessions that name the room, and the fixed block per user message.
+`node core/dev/turn-split.mjs --stats --room <room session id>` prints the `## Fan-out` block: per-message member-Bot and member-turn counts (10-minute window), the day totals of the member Sessions that name the room, and the fixed block per user message.
 
 FlyBot 交付组, 2026-10-25, 511 user messages in the room (one per `turn/start` of the room's own relay Session):
 
@@ -179,7 +179,7 @@ One message in the delivery group costs its members **21.7 calls** and **1.17 mi
 
 ## 8. Retries and repeated work
 
-`node dev/turn-split.mjs --stats` prints the `## Retries` block: `llm/retry` and `assistant/attempt` counts by local day, and how many attempts carried a non-zero usage chunk.
+`node core/dev/turn-split.mjs --stats` prints the `## Retries` block: `llm/retry` and `assistant/attempt` counts by local day, and how many attempts carried a non-zero usage chunk.
 
 | Measure | 2026-10-25 | 2026-10-26 (partial) | Source |
 | --- | --- | --- | --- |
diff --git a/patches/ds-bot/files/test/report-command-paths.test.js b/patches/ds-bot/files/test/report-command-paths.test.js
new file mode 100644
index 000000000..3c2f2534c
--- /dev/null
+++ b/patches/ds-bot/files/test/report-command-paths.test.js
@@ -0,0 +1,36 @@
+import assert from 'node:assert/strict'
+import { existsSync, readFileSync, statSync } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { test } from 'node:test'
+import { fileURLToPath } from 'node:url'
+
+const ROOT = join(dirname(fileURLToPath(import.meta.url)), '..', '..')
+const REPORT = join(ROOT, 'docs', 'reports', '2026-10-26-turn-input-split.md')
+
+// Every `node <script> ...` token a report prints, with the line it sits on, so a
+// reader who copies a command gets one the tree can actually run.
+function nodeCommands(text) {
+  const found = []
+  text.split('\n').forEach((line, index) => {
+    for (const match of line.matchAll(/\bnode\s+([\w./-]+\.(?:mjs|cjs|js))\b/g)) {
+      found.push({ line: index + 1, path: match[1] })
+    }
+  })
+  return found
+}
+
+test('the node-command reader finds a script and its line', () => {
+  assert.deepEqual(nodeCommands('run: node dev/x.mjs --flag'), [{ line: 1, path: 'dev/x.mjs' }])
+  // A bare interpreter invocation with no script after it is not a command path.
+  assert.deepEqual(nodeCommands('node --version'), [])
+})
+
+test('every node command in the turn-split report names a script that exists at the tree root', () => {
+  const commands = nodeCommands(readFileSync(REPORT, 'utf8'))
+  assert.ok(commands.length > 0, 'the report prints at least one node command; finding none proves nothing')
+
+  const missing = commands
+    .filter((command) => !existsSync(join(ROOT, command.path)) || !statSync(join(ROOT, command.path)).isFile())
+    .map((command) => `line ${command.line}: node ${command.path}`)
+  assert.deepEqual(missing, [], `commands the report prints but the tree cannot run:\n${missing.join('\n')}`)
+})