diff --git a/src/agent/nodes.py b/src/agent/nodes.py
index e9f4fbe..34ee0bb 100644
--- a/src/agent/nodes.py
+++ b/src/agent/nodes.py
@@ -66,6 +66,16 @@ def _apply_changes(changes: list[dict], repo_dir: Path) -> None:
             logger.info("%s: %s", "Created" if action == "create" else "Modified", change["file"])
 
 
+def _get_metadata(state: AgentState, config: RunnableConfig) -> tuple[str, str]:
+    """Return (model_name, thread_id) from the current state and config."""
+    settings: Settings = state["settings"]
+    # Get model for current prompt type if set, else default
+    prompt_type = state.get("prompt_type", "")
+    model_name = settings.llm.get_model(prompt_type)
+    thread_id = config.get("configurable", {}).get("thread_id", "unknown")
+    return model_name, thread_id
+
+
 async def _run_checks(repo_config, repo_dir: Path) -> CommandResult:
     """Run test suite and linter in parallel, returning combined result."""
     coros = []
@@ -261,7 +271,11 @@ async def implement_post(state: AgentState, config: RunnableConfig) -> dict:
     impl = _json_parser.parse(last_message.content)
 
     _apply_changes(impl.get("changes", []), state["repo_dir"])
-    state["git"].commit_all(impl.get("commit_message", "feat: implement task"))
+
+    model, thread_id = _get_metadata(state, config)
+    commit_msg = impl.get("commit_message", "feat: implement task")
+    full_msg = f"{commit_msg}\n\nmodel: {model}\nthread_id: {thread_id}"
+    state["git"].commit_all(full_msg)
 
     return {"fix_history": []}
 
@@ -326,8 +340,11 @@ async def fix_post(state: AgentState, config: RunnableConfig) -> dict:
     fix_data = _json_parser.parse(last_message.content)
 
     _apply_changes(fix_data.get("changes", []), state["repo_dir"])
+
+    model, thread_id = _get_metadata(state, config)
     commit_msg = fix_data.get("commit_message", f"fix: attempt {state['attempt']}")
-    state["git"].commit_all(commit_msg)
+    full_msg = f"{commit_msg}\n\nmodel: {model}\nthread_id: {thread_id}"
+    state["git"].commit_all(full_msg)
 
     history = list(state.get("fix_history", []))
     history.append({
@@ -365,10 +382,14 @@ async def create_pr(state: AgentState, config: RunnableConfig) -> dict:
         # Template-based PR — skip the LLM call
         file_list = "\n".join(f"- `{f}`" for f in changed)
         title = f"Agent: {state['task'][:60]}"
+
+        model, thread_id = _get_metadata(state, config)
         body = (
             f"## Task\n{state['task']}\n\n"
             f"## Changes\n{file_list}\n\n"
-            f"```\n{git.diff_stat()}\n```"
+            f"```\n{git.diff_stat()}\n```\n\n"
+            f"model: {model}\n"
+            f"thread_id: {thread_id}"
         )
 
         pr_url = git.create_pull_request(
@@ -402,6 +423,9 @@ async def create_pr_post(state: AgentState, config: RunnableConfig) -> dict:
     body = pr.get("body", "Automated changes by coding agent.")
     body = f"## Task\n{state['task']}\n\n{body}"
 
+    model, thread_id = _get_metadata(state, config)
+    body += f"\n\nmodel: {model}\nthread_id: {thread_id}"
+
     pr_url = state["git"].create_pull_request(
         branch=state["active_branch"],
         title=pr.get("title", f"Agent: {state['task'][:60]}"),