Handle delayed Claude tmux prompts

[axeldelafosse]

Summary

• harden Claude tmux startup prompt polling so delayed dev-channel/trust prompts are still caught
• keep the existing prompt-handling flow but reset settle state after each handled prompt
• add coverage for delayed dev-channel prompts and the bounded no-prompt wait path

Verification

• bun test tests/loop/tmux.test.ts
• bun run check

[gemini-code-assist]

Code Review

This pull request enhances the tmux pane unblocking mechanism by implementing snapshot-based change detection and increasing the polling limit to better handle delayed prompts. It also includes a new test case for delayed dev-channel prompts. The review feedback recommends refactoring the test file to use a helper function for shared setup, which would reduce boilerplate and improve maintainability across the runInTmux tests.

[gemini-code-assist]

There's a lot of repeated setup code across the runInTmux tests. To improve maintainability and reduce boilerplate, consider creating a test helper function. This function could encapsulate the common setup for manifest, storage, and the default mocked dependencies for runInTmux.

Each test could then call this helper and override only the specific mocks it needs, like capturePane or sendKeys.

For example, you could have a helper like this:

const setupPairedRunTest = (
  overrides: Partial<Parameters<typeof runInTmux>[1]> = {}
) => {
  const keyCalls: Array<{ keys: string[]; pane: string }> = [];
  let sessionStarted = false;
  const manifest = createRunManifest({ ... });
  const storage = { ... };

  const defaultDeps = {
    capturePane: () => "",
    cwd: "/repo",
    env: {},
    findBinary: () => true,
    sendKeys: (pane: string, keys: string[]) => {
      keyCalls.push({ keys, pane });
    },
    spawn: (args: string[]) => {
    },
    ...overrides,
  };

  const run = (
    args: string[] = ["--tmux", "--proof", "verify with tests"],
    launch?: PairedTmuxLaunch
  ) => runInTmux(args, defaultDeps, launch ?? { opts: makePairedOptions(), task: "Ship feature" });

  return { run, keyCalls, manifest, storage };
};