refactor: simplify committer — minimal prompt, config simplified

- CommitterGitConfig → CommitterConfig { cwd } (remote dropped)
- threadId from ctx.threadId, not config
- Remove summarizeThreadContext — agent uses uncaged-workflow thread CLI
- Prompt doesn't teach git or require structured output

packages/workflow-role-committer/__tests__/committer.test.ts

@@ -8,6 +8,7 @@ import { createCommitterRole } from "../src/committer.js";
 
 function makeCtx(): ThreadContext {
   return {
+    threadId: "01TEST00000000000000000000",
     start: {
       role: START,
       content: "do thing",

packages/workflow-role-committer/src/committer.ts

@@ -23,17 +23,12 @@ export const committerMetaSchema = z.discriminatedUnion("status", [
 
 export type CommitterMeta = z.infer<typeof committerMetaSchema>;
 
-export type CommitterGitConfig = {
+export type CommitterConfig = {
   cwd: string;
-  remote: string;
-  /** When non-null, prompts mention `uncaged-workflow thread <id>` for extra context. */
-  threadId: string | null;
 };
 
-export const DEFAULT_COMMITTER_GIT_CONFIG: CommitterGitConfig = {
+export const DEFAULT_COMMITTER_CONFIG: CommitterConfig = {
   cwd: ".",
-  remote: "origin",
-  threadId: null,
 };
 
 const DRY_RUN_COMMITTED_META: CommitterMeta = {
@@ -46,55 +41,31 @@ function resolveExtractDryRun(extractDryRun: boolean | null): boolean {
   return extractDryRun === true;
 }
 
-function summarizeThreadContext(ctx: ThreadContext): string {
-  const lines: string[] = [`Initial prompt:\n${ctx.start.content}`];
-  for (const step of ctx.steps) {
-    const snippet = step.content.length > 800 ? `${step.content.slice(0, 800)}…` : step.content;
-    lines.push(`\n### ${step.role}\n${snippet}`);
-  }
-  return lines.join("\n");
-}
+function committerSystemPrompt(ctx: ThreadContext, config: CommitterConfig): string {
+  return `You are the git committer for this workflow. The project is at \`${config.cwd}\`.
 
-function committerSystemPrompt(ctx: ThreadContext, gitConfig: CommitterGitConfig): string {
-  const threadLine =
-    gitConfig.threadId !== null
-      ? `Optional CLI context: run \`uncaged-workflow thread ${gitConfig.threadId}\` if available.\n`
-      : "";
+## Context
 
-  return `You are the **git committer** for this workflow. Prior roles planned, implemented, and reviewed the change; your job is to perform git operations in the repository and report the outcome.
+Use \`uncaged-workflow thread ${ctx.threadId}\` to read the full workflow thread for context on what was done and why.
 
-## Repository context
+## Task
 
-- Working directory (run git commands here): \`${gitConfig.cwd}\`
-- Remote name for push: \`${gitConfig.remote}\`
-${threadLine}
-## Thread context
-
-${summarizeThreadContext(ctx)}
-
-## Your task
-
-1. Inspect the working tree (e.g. \`git status\`). If there is nothing to commit, stop and explain why in your reply.
-2. Create a new branch using **conventional** naming (\`feat/<slug>\`, \`fix/<slug>\`, or \`chore/<slug>\` as appropriate).
-3. Stage all intended changes, commit with a **single-line conventional commit subject**, and push the branch to \`${gitConfig.remote}\` (e.g. \`git push -u ${gitConfig.remote} <branch>\`).
-4. In your reply, state clearly whether the push succeeded, the **exact branch name** used, and the **full commit SHA** from \`git rev-parse HEAD\` (or explain the failure).
-
-Structured extraction will read \`status\`, branch, commit SHA, or error details from your answer.`;
+Create a branch, commit the changes, and push. Report whether the push succeeded or failed, the branch name, and the commit SHA.`;
 }
 
 /**
  * Git committer role: the agent runs git (branch, commit, push); structured extraction yields {@link CommitterMeta}.
- * Dry-run skips the agent and returns a stable committed placeholder; unexpected throws yield \`status: "failed"\`.
+ * Dry-run skips the agent and returns a stable committed placeholder; unexpected throws yield `status: "failed"`.
  */
 export function createCommitterRole(
   adapter: AgentFn,
   extract: { provider: LlmProvider; dryRun: boolean | null; dryRunMeta: CommitterMeta },
-  gitConfig: CommitterGitConfig = DEFAULT_COMMITTER_GIT_CONFIG,
+  config: CommitterConfig = DEFAULT_COMMITTER_CONFIG,
 ): Role<CommitterMeta> {
   const inner: Role<CommitterMeta> = createRole({
     name: "committer",
     schema: committerMetaSchema,
-    systemPrompt: async (ctx) => committerSystemPrompt(ctx, gitConfig),
+    systemPrompt: async (ctx) => committerSystemPrompt(ctx, config),
     agent: adapter,
     extract,
   });

packages/workflow-role-committer/src/index.ts

@@ -1,7 +1,7 @@
 export {
-  type CommitterGitConfig,
+  type CommitterConfig,
   type CommitterMeta,
   committerMetaSchema,
   createCommitterRole,
-  DEFAULT_COMMITTER_GIT_CONFIG,
+  DEFAULT_COMMITTER_CONFIG,
 } from "./committer.js";