Adds test/helpers/claude-pty-runner.ts. Spawns the actual claude binary
via Bun.spawn({terminal:}) (Bun 1.3.10+ has built-in PTY — no node-pty,
no native modules), drives it through stdin/stdout, and parses rendered
terminal frames. Pattern adapted from the cc-pty-import branch's
terminal-agent.ts but stripped of WS/cookie/Origin scaffolding (not
needed for headless tests).
Public API:
- launchClaudePty(opts) — boots claude with --permission-mode plan|null,
auto-handles the workspace-trust dialog, returns a session handle.
- session.send / sendKey / waitForAny / waitFor / mark / visibleSince /
visibleText / rawOutput / close
- runPlanSkillObservation({skillName, inPlanMode, timeoutMs}) — high-level
contract for plan-mode skill tests. Returns { outcome, summary, evidence,
elapsedMs }. outcome ∈ {asked, plan_ready, silent_write, exited, timeout}.
Replaces the SDK-based runPlanModeSkillTest from plan-mode-helpers.ts
which never worked. Plan mode renders its native "Ready to execute"
confirmation as TTY UI (numbered options with ❯ cursor), not via the
AskUserQuestion tool — so the SDK's canUseTool interceptor never fired
and the assertion always saw zero questions. Real PTY observes the
rendered output directly.
Deletes test/helpers/plan-mode-helpers.ts. No production callers remained.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Garry Tan
1b1fd30ec7