Agent Breaking Changes_

← Pi

Pi v1.1.0

2026-10-07 · official notes

Summary

• New Features
• Program status reporting: terminals and agent dashboards that support OSC 7501 see whether Pi is working, blocked on a dialog or login, done, or failed. See Program status.
• Claude Haiku 5.5: anthropic/claude-haiku-5-5, with adaptive thinking up to xhigh/max effort.

Full notes

### New Features

- **Program status reporting**: terminals and agent dashboards that support OSC 7501 see whether Pi is working, blocked on a dialog or login, done, or failed. See [Program status](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/terminal-setup.md#program-status).
- **Claude Haiku 5.5**: `anthropic/claude-haiku-5-5`, with adaptive thinking up to `xhigh`/`max` effort.
- **Adjust default tools with `+name`/`-name`**: `--tools` entries like `pi -t +codemode,-write` change the default selection instead of replacing it. See [Tools](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/cli.md#tools).
- **GPT-6 Luna and image classification**: OpenAI's GPT-6 Luna is available as a classifier model through the Decisions API, and codemode's `models.classify()` accepts images for classifiers that support them. See [Use classifier models](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/models.md#use-classifier-models).
- **Native llama.cpp decision models**: Julia-1, Laya, Kev, lev, and OpenJev served by llama.cpp 0.6.0 or later run natively as classifiers through `/v1/systemone`. See [Classification](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/llama-cpp.md#classification).

### Added

- Added `+name` and `-name` entries to `--tools`, which change the default tool selection instead of replacing it, for example `pi -t +codemode`
- Added `durationMs` to the tool render context and to `tool_execution_end` extension events: the recorded execution time of a final tool result ([#10549](https://github.com/earendil-works/pi/issues/10549))
- Added `outputPad` to the tool render context ([#10557](https://github.com/earendil-works/pi/pull/10557) by [@rwachtler](https://github.com/rwachtler))
- Added OpenAI's GPT-6 Luna as a classifier model through the Decisions API, available with `OPENAI_API_KEY` (see [Use classifier models](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/models.md#use-classifier-models))
- Added `images` to codemode's `models.classify()` context, so classifiers that accept images, such as GPT-6 Luna, can judge them
- Added program status reporting with OSC 7501: terminals and agent dashboards that support it see whether Pi is working, blocked on a dialog or login, done, or failed. `PI_PROGRAM_STATUS=1|0` overrides detection (see [Terminal setup](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/terminal-setup.md#program-status)) ([#10607](https://github.com/earendil-works/pi/issues/10607))
- Added `aborted` to `agent_settled` session, extension, and JSON events, so integrations can tell a cancelled run from a finished one ([#10607](https://github.com/earendil-works/pi/issues/10607))
- Added Claude Haiku 5.5 (`anthropic/claude-haiku-5-5`), with adaptive thinking up to `xhigh`/`max` effort and prompt caching on Bedrock
- Added native llama.cpp decision models: Julia-1, Laya, Kev, lev, and OpenJev served by llama.cpp 0.6.0 or later are listed only as classifiers through `/v1/systemone` instead of as chat models (see [Classification](https://github.com/earendil-works/pi/blob/v1.1.0/packages/coding-agent/docs/llama-cpp.md#classification)) ([#10382](https://github.com/earendil-works/pi/pull/10382))

### Changed

- Changed `outputPad` to also apply to `!` command output, tool output, and summary blocks ([#9946](https://github.com/earendil-works/pi/issues/9946), [#10557](https://github.com/earendil-works/pi/pull/10557) by [@rwachtler](https://github.com/rwachtler))
- Changed `pi mcp login --timeout` to limit the whole sign-in, including requests to the authorization server, instead of only the wait for the browser ([#10565](https://github.com/earendil-works/pi/issues/10565))

### Fixed

- Fixed bash and PowerShell results losing `Took` after reloading a session, and the live `Took` including wall-clock steps; both now show the recorded execution time ([#10549](https://github.com/earendil-works/pi/issues/10549))
- Fixed managed installs keeping every old release; `pi update` now keeps only the new release and the one it updated from ([#10392](https://github.com/earendil-works/pi/issues/10392), [#10511](https://github.com/earendil-works/pi/pull/10511) by [@davidbrai](https://github.com/davidbrai))
- Fixed standalone binaries loading `.env`, `.env.local`, and `.env.development` from the launch directory into Pi's environment ([#10473](https://github.com/earendil-works/pi/issues/10473))
- Fixed `!!` command headers losing their dim color once output arrives ([#10557](https://github.com/earendil-works/pi/pull/10557) by [@rwachtler](https://github.com/rwachtler))
- Fixed the codemode description not marking `searchTools()`, `describeTool()`, and `describeNamespace()` as async, which led models to serialize the unawaited promise as `{}` ([#10555](https://github.com/earendil-works/pi/issues/10555))
- Fixed codemode output items running together, so models could not tell where one `text()` or `console.log()` output ended and the next began. With several text items, each now starts with a `==> text N/M <==` line, and `console` calls follow the other output in one `<console_output>` block with one line per call
- Fixed `/mcp` waiting for all servers to connect before opening; the manager now updates live and remains usable while enabling, reconnecting, or disabling servers ([#10562](https://github.com/earendil-works/pi/issues/10562))
- Fixed images being dropped as "could not be resized" when running under `node --watch` on Node 24.19+ and 26.x, where Node posts its own messages on the image resize worker channel ([#10527](https://github.com/earendil-works/pi/issues/10527))
- Fixed clipboard paste doing nothing in Termux, and failed copies there omitting the Termux:API install hint ([#10391](https://github.com/earendil-works/pi/issues/10391))
- Fixed `!` and RPC `bash` output keeping fragments of color codes, such as a stray `m`, when a code was split across output chunks ([#10504](https://github.com/earendil-works/pi/issues/10504))
- Fixed MCP OAuth sign-ins that could not be cancelled while waiting on the authorization server and kept running after the session ended. The sign-in screen now cancels with Esc at every step, session shutdown aborts a running sign-in, and each request to the authorization server times out after 15 seconds ([#10565](https://github.com/earendil-works/pi/issues/10565))
- Fixed shutdown waiting up to 15 seconds to refresh an MCP OAuth token that was about to expire, only to close the server's session ([#10565](https://github.com/earendil-works/pi/issues/10565))
- Fixed the fullscreen text selection surviving session switches and other transcript rebuilds, which highlighted unrelated text in the new transcript ([#9311](https://github.com/earendil-works/pi/issues/9311), [#10567](https://github.com/earendil-works/pi/pull/10567) by [@christianklotz](https://github.com/christianklotz))
- Fixed OpenAI models on Bedrock ignoring the thinking level and always running at Bedrock's default reasoning effort ([#9331](https://github.com/earendil-works/pi/issues/9331), [#10142](https://github.com/earendil-works/pi/pull/10142) by [@jsanter27](https://github.com/jsanter27))
- Fixed model `headers` in `models.json` not overriding the `originator` and `User-Agent` headers of Codex requests ([#10429](https://github.com/earendil-works/pi/pull/10429) by [@lucasmeijer](https://github.com/lucasmeijer))
- Fixed `server_busy` and `servers are currently busy` provider errors ending the turn instead of being retried ([#10543](https://github.com/earendil-works/pi/issues/10543))
- Fixed Mistral responses that end with `finish_reason: "error"` not being retried ([#10487](https://github.com/earendil-works/pi/issues/10487))
- Reduced context-limit request failures by estimating input at 3.5 characters per token instead of 4 when calculating output limits ([#10497](https://github.com/earendil-works/pi/issues/10497))
- Fixed Radius models disabled by an organization owner still being listed
- Fixed Anthropic browser login failing with "localhost refused to connect" when port 53692 is reserved or in use, for example by Hyper-V/WSL port exclusions on Windows: login now falls back to a free loopback port ([#10571](https://github.com/earendil-works/pi/issues/10571))
- Fixed session costs undercounting long prompts on models with prompt-length pricing tiers, such as Claude Haiku 5.5, Gemini 3.1 Pro, and GPT-5.4, through OpenCode, OpenCode Go, OpenRouter, Vercel AI Gateway, Google, MiniMax, and other providers
- Fixed Markdown links not being clickable in Herdr ([#10573](https://github.com/earendil-works/pi/issues/10573))