fix(agents): normalize punctuation for extensionless imports

docs/development/agent-workflow.md

@@ -63,7 +63,8 @@ HTML video, audio, source and track `src` assets and video posters use the same
 existence checks as images. Entity decoding uses full HTML text/attribute rules,
 including references whose semicolon may be omitted.
 Inline guidance imports are rejected after punctuation as well as whitespace.
-Extensionless inline candidates are also imports when they resolve to repository files.
+Extensionless inline candidates are also imports when they resolve to repository files,
+after removing prose punctuation, including Unicode separators.
 Declared scoped dependencies, scope wildcards and matching TypeScript path aliases
 are recognized as package/alias mentions. Traversal and document-file imports are
 rejected before those exemptions. TypeScript configuration is parsed as JSONC.

tools/skills/validate-agent-guidance.mjs

@@ -188,7 +188,9 @@ export async function validateAgentGuidance({ rootDir }) {
                     inlineImports.push(token);
                     continue;
                 }
-                const candidate = token.replace(/[?!.,;:)"'\]}]+$/u, '');
+                const candidate = token
+                    .split(/(?=[^\x00-\x7f])\p{P}/u, 1)[0]
+                    .replace(/[?!.,;:)"'\]}]+$/u, '');
                 try {
                     if ((await stat(resolve(rootDir, candidate))).isFile())
                         inlineImports.push(token);

tools/skills/validate-agent-guidance.test.mjs

@@ -1123,3 +1123,16 @@ for (const punctuation of ['—its', '–its', '…', '，next', '。next', '”
         );
     });
 }
+
+for (const suffix of ['—then', '，next', '”']) {
+    test(`extensionless imports stop at Unicode punctuation: ${suffix}`, async (t) => {
+        const result = await diagnostics(t, {
+            'CLAUDE.md':
+                '@AGENTS.md\n\nRead @INSTRUCTIONS' + suffix + ' continue',
+            INSTRUCTIONS: 'Additional guidance',
+        });
+        assert.ok(
+            result.some((message) => message.includes('additional or inline'))
+        );
+    });
+}