### New Features
- **Hugging Face provider**: Access Hugging Face models via OpenAI-compatible Inference Router. Set `HF_TOKEN` environment variable. See [README.md#hugging-face](README.md#hugging-face).
- **Extended prompt caching**: `PI_CACHE_RETENTION=long` enables 1-hour caching for Anthropic (vs 5min default) and 24-hour for OpenAI (vs in-memory default). Only applies to direct API calls. See [README.md#prompt-caching](README.md#prompt-caching).
- **Configurable autocomplete height**: `autocompleteMaxVisible` setting (3-20 items, default 5) controls dropdown size. Adjust via `/settings` or `settings.json`.
- **Shell-style keybindings**: `alt+b`/`alt+f` for word navigation, `ctrl+d` for delete character forward. See [docs/keybindings.md](docs/keybindings.md).
- **RPC `get_commands`**: Headless clients can now list available commands programmatically. See [docs/rpc.md](docs/rpc.md).
### Added
- Added Hugging Face provider support via OpenAI-compatible Inference Router ([#994](https://github.com/badlogic/pi-mono/issues/994))
- Added `PI_CACHE_RETENTION` environment variable to control cache TTL for Anthropic (5m vs 1h) and OpenAI (in-memory vs 24h). Set to `long` for extended retention. ([#967](https://github.com/badlogic/pi-mono/issues/967))
- Added `autocompleteMaxVisible` setting for configurable autocomplete dropdown height (3-20 items, default 5) ([#972](https://github.com/badlogic/pi-mono/pull/972) by [@masonc15](https://github.com/masonc15))
- Added `/files` command to list all file operations (read, write, edit) in the current session
- Added shell-style keybindings: `alt+b`/`alt+f` for word navigation, `ctrl+d` for delete character forward (when editor has text) ([#1043](https://github.com/badlogic/pi-mono/issues/1043) by [@jasonish](https://github.com/jasonish))
- Added `get_commands` RPC method for headless clients to list available commands ([#995](https://github.com/badlogic/pi-mono/pull/995) by [@dnouri](https://github.com/dnouri))
### Changed
- Improved `extractCursorPosition` performance in TUI: scans lines in reverse order, early-outs when cursor is above viewport ([#1004](https://github.com/badlogic/pi-mono/pull/1004) by [@can1357](https://github.com/can1357))
- Autocomplete improvements: better handling of partial matches and edge cases ([#1024](https://github.com/badlogic/pi-mono/pull/1024) by [@Perlence](https://github.com/Perlence))
### Fixed
- External edits to `settings.json` are now preserved when pi reloads or saves unrelated settings. Previously, editing settings.json directly (e.g., removing a package from `packages` array) would be silently reverted on next pi startup when automatic setters like `setLastChangelogVersion()` triggered a save.
- Fixed custom header not displaying correctly with `quietStartup` enabled ([#1039](https://github.com/badlogic/pi-mono/pull/1039) by [@tudoroancea](https://github.com/tudoroancea))
- Empty array in package filter now disables all resources instead of falling back to manifest defaults ([#1044](https://github.com/badlogic/pi-mono/issues/1044))
- Auto-retry counter now resets after each successful LLM response instead of accumulating across tool-use turns ([#1019](https://github.com/badlogic/pi-mono/issues/1019))
- Fixed incorrect `.md` file names in warning messages ([#1041](https://github.com/badlogic/pi-mono/issues/1041) by [@llimllib](https://github.com/llimllib))
- Fixed provider name hidden in footer when terminal is narrow ([#981](https://github.com/badlogic/pi-mono/pull/981) by [@Perlence](https://github.com/Perlence))
- Fixed backslash input buffering causing delayed character display in editor ([#1037](https://github.com/badlogic/pi-mono/pull/1037) by [@Perlence](https://github.com/Perlence))
- Fixed markdown table rendering with proper row dividers and minimum column width ([#997](https://github.com/badlogic/pi-mono/pull/997) by [@tmustier](https://github.com/tmustier))
- Fixed OpenAI completions `toolChoice` handling ([#998](https://github.com/badlogic/pi-mono/pull/998) by [@williamtwomey](https://github.com/williamtwomey))
- Fixed cross-provider handoff failing when switching from OpenAI Responses API providers due to pipe-separated tool call IDs ([#1022](https://github.com/badlogic/pi-mono/issues/1022))
- Fixed 429 rate limit errors incorrectly triggering auto-compaction instead of retry with backoff ([#1038](https://github.com/badlogic/pi-mono/issues/1038))
- Fixed Anthropic provider to handle `sensitive` stop_reason returned by API ([#978](https://github.com/badlogic/pi-mono/issues/978))
- Fixed DeepSeek API compatibility by detecting `deepseek.com` URLs and disabling unsupported `developer` role ([#1048](https://github.com/badlogic/pi-mono/issues/1048))
- Fixed Anthropic provider to preserve input token counts when proxies omit them in `message_delta` events ([#1045](https://github.com/badlogic/pi-mono/issues/1045))
- Fixed `autocompleteMaxVisible` setting not persisting to `settings.json`