feat: support hyphenated DSML tag variants in tool-call parsing

Add compatibility for <dsml-tool-calls>/<dsml-invoke>/<dsml-parameter>
tag forms alongside the canonical pipe-prefixed DSML shell. Hyphenated
forms only activate when a DSML prefix is detected, preventing false
matches on bare XML lookalikes. Go and Node parsers aligned, with tests
covering here-doc CDATA, streaming sieve, and negative lookalike cases.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/node/stream-tool-sieve.test.js

@@ -57,6 +57,35 @@ test('parseToolCalls parses DSML shell as XML-compatible tool call', () => {
   assert.deepEqual(calls[0].input, { path: 'README.MD' });
 });
 
+test('parseToolCalls parses hyphenated DSML shell with here-doc CDATA', () => {
+  const payload = `<dsml-tool-calls>
+<dsml-invoke name="Bash">
+<dsml-parameter name="command"><![CDATA[git commit -m "$(cat <<'EOF'
+docs: add missing directory entries and package descriptions to architecture docs
+Fill gaps identified in architecture audit: add artifacts/ and static/ to
+directory tree, and document 7 auxiliary internal/ packages (textclean,
+claudeconv, compat, rawsample, devcapture, util, version) in Section 3.
+
+Co-Authored-By: Claude Opus 4.7 noreply@anthropic.com
+EOF
+)"]]></dsml-parameter>
+<dsml-parameter name="description"><![CDATA[Create commit with architecture doc updates]]></dsml-parameter>
+</dsml-invoke>
+</dsml-tool-calls>`;
+  const calls = parseToolCalls(payload, ['Bash']);
+  assert.equal(calls.length, 1);
+  assert.equal(calls[0].name, 'Bash');
+  assert.equal(calls[0].input.description, 'Create commit with architecture doc updates');
+  assert.equal(calls[0].input.command.includes('git commit -m "$(cat <<\'EOF\''), true);
+  assert.equal(calls[0].input.command.includes('Co-Authored-By: Claude Opus 4.7'), true);
+});
+
+test('parseToolCalls ignores bare hyphenated tool_calls lookalike', () => {
+  const payload = '<tool-calls><invoke name="Bash"><parameter name="command">pwd</parameter></invoke></tool-calls>';
+  const calls = parseToolCalls(payload, ['Bash']);
+  assert.equal(calls.length, 0);
+});
+
 test('parseToolCalls tolerates DSML trailing pipe tag terminator', () => {
   const payload = [
     '<|DSML|tool_calls| ',
@@ -471,6 +500,31 @@ test('sieve preserves Chinese review body with inline DSML mention before real t
   assert.equal(text.includes('<|DSML|invoke'), false);
 });
 
+test('sieve captures hyphenated DSML shell with here-doc CDATA', () => {
+  const events = runSieve([
+    '<dsml-tool-calls>\n',
+    '<dsml-invoke name="Bash">\n',
+    '<dsml-parameter name="command"><![CDATA[git commit -m "$(cat <<\'EOF\'\n',
+    'docs: add missing directory entries and package descriptions to architecture docs\n',
+    'Fill gaps identified in architecture audit: add artifacts/ and static/ to\n',
+    'directory tree, and document 7 auxiliary internal/ packages (textclean,\n',
+    'claudeconv, compat, rawsample, devcapture, util, version) in Section 3.\n\n',
+    'Co-Authored-By: Claude Opus 4.7 noreply@anthropic.com\n',
+    'EOF\n',
+    ')"]]></dsml-parameter>\n',
+    '<dsml-parameter name="description"><![CDATA[Create commit with architecture doc updates]]></dsml-parameter>\n',
+    '</dsml-invoke>\n',
+    '</dsml-tool-calls>',
+  ], ['Bash']);
+  const text = collectText(events);
+  const finalCalls = events.filter((evt) => evt.type === 'tool_calls').flatMap((evt) => evt.calls || []);
+  assert.equal(finalCalls.length, 1);
+  assert.equal(finalCalls[0].input.command.includes('git commit -m "$(cat <<\'EOF\''), true);
+  assert.equal(finalCalls[0].input.command.includes('Co-Authored-By: Claude Opus 4.7'), true);
+  assert.equal(text.includes('dsml-tool-calls'), false);
+  assert.equal(text.includes('git commit -m'), false);
+});
+
 test('parseToolCalls ignores JSON tool_calls payload (XML-only)', () => {
   const payload = JSON.stringify({
     tool_calls: [{ name: 'read_file', input: { path: 'README.MD' } }],