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22 Commits

  • refactor(coding-agent): replace AgentSessionRuntimeHost with closure-based AgentSessionRuntime 
    - Replace AgentSessionRuntimeHost and bootstrap abstractions with AgentSessionRuntime
- Runtime creation is now closure-based via CreateAgentSessionRuntimeFactory
- Factory closes over process-global fixed inputs, recreates cwd-bound services per effective cwd
- Session config (model, thinking, tools, scoped models) re-resolved per target cwd
- CLI resource paths resolved once at startup as absolute paths
- Swap lifecycle: teardown old, create next, apply next (hard fail on creation error)
- Unified diagnostics model (info/warning/error) for args, services, session resolution, resources
- No logging or process exits inside creation/parsing logic
- Removed session_directory support
- Removed session_switch and session_fork extension events (use session_start with reason)
- Moved package/config CLI to package-manager-cli.ts
- Fixed theme init for --resume session picker
- Fixed flaky reftable footer test (content-based polling)
- Fixed silent drop of unknown single-dash CLI flags
- Added error diagnostics for missing explicit CLI resource paths
- Updated SDK docs, examples, plans, exports, tests, changelog

fixes #2753
    Mario Zechner · 2026-04-03 20:14:12 +02:00
    9f9277ccdd
  • add(coding-agent): add defineTool helper closes #2746
    Mario Zechner · 2026-04-01 23:07:14 +02:00
    e2f29b0523
  • refactor(coding-agent): add runtime host for session switching closes #2024
    Mario Zechner · 2026-03-31 13:49:57 +02:00
    d86122cbd3
  • fix(coding-agent): unify source provenance, closes #1734
    Mario Zechner · 2026-03-23 02:02:42 +01:00
    4e5af01d73
  • fix(coding-agent): export ToolCallEventResult closes #2458
    Mario Zechner · 2026-03-20 12:54:33 +01:00
    47ea28b584
  • fix(coding-agent): sync tool hooks with agent event processing closes #2113
    Mario Zechner · 2026-03-14 03:10:04 +01:00
    63ac2df24d
  • Rename /branch command to /fork 
    - RPC: branch -> fork, get_branch_messages -> get_fork_messages
- SDK: branch() -> fork(), getBranchMessages() -> getForkMessages()
- AgentSession: branch() -> fork(), getUserMessagesForBranching() -> getUserMessagesForForking()
- Extension events: session_before_branch -> session_before_fork, session_branch -> session_fork
- Settings: doubleEscapeAction 'branch' -> 'fork'

fixes #641
    Mario Zechner · 2026-01-11 23:12:31 +01:00
    df3f5f41c0
  • feat(coding-agent): add user_bash event and theme API extensions 
    - user_bash event for intercepting ! and !! commands (#528)
- Extensions can return { operations } or { result } to redirect/replace
- executeBashWithOperations() for custom BashOperations execution
- session.recordBashResult() for extensions handling bash themselves
- Theme API: getAllThemes(), getTheme(), setTheme() on ctx.ui
- mac-system-theme.ts example: sync with macOS dark/light mode
- Updated ssh.ts to use user_bash event
    Mario Zechner · 2026-01-08 21:50:56 +01:00
    121823c74d
  • refactor(coding-agent): simplify extension runtime architecture 
    - Replace per-extension closures with shared ExtensionRuntime
- Split context actions: ExtensionContextActions (required) + ExtensionCommandContextActions (optional)
- Rename LoadedExtension to Extension, remove setter methods
- Change runner.initialize() from options object to positional params
- Derive hasUI from uiContext presence (no separate param)
- Add warning when extensions override built-in tools
- RPC and print modes now provide full command context actions

BREAKING CHANGE: Extension system types and initialization API changed.
See CHANGELOG.md for migration details.
    Mario Zechner · 2026-01-07 23:50:18 +01:00
    cb3ac0ba9e
  • Merge hooks and custom-tools into unified extensions system (#454) 
    Breaking changes:
- Settings: 'hooks' and 'customTools' arrays replaced with 'extensions'
- CLI: '--hook' and '--tool' flags replaced with '--extension' / '-e'
- API: HookMessage renamed to CustomMessage, role 'hookMessage' to 'custom'
- API: FileSlashCommand renamed to PromptTemplate
- API: discoverSlashCommands() renamed to discoverPromptTemplates()
- Directories: commands/ renamed to prompts/ for prompt templates

Migration:
- Session version bumped to 3 (auto-migrates v2 sessions)
- Old 'hookMessage' role entries converted to 'custom'

Structural changes:
- src/core/hooks/ and src/core/custom-tools/ merged into src/core/extensions/
- src/core/slash-commands.ts renamed to src/core/prompt-templates.ts
- examples/hooks/ and examples/custom-tools/ merged into examples/extensions/
- docs/hooks.md and docs/custom-tools.md merged into docs/extensions.md

New test coverage:
- test/extensions-runner.test.ts (10 tests)
- test/extensions-discovery.test.ts (26 tests)
- test/prompt-templates.test.ts
    Mario Zechner · 2026-01-05 01:43:35 +01:00
    c6fc084534
  • feat(coding-agent): add event bus for tool/hook communication (#431) 
    * feat(coding-agent): add event bus for tool/hook communication

Adds pi.events API enabling custom tools and hooks to communicate via
pub/sub. Tools can emit events, hooks can listen. Shared EventBus instance
created per session in createAgentSession().

- EventBus interface with emit() and on() methods
- on() returns unsubscribe function
- Threaded through hook and tool loaders
- Documented in hooks.md and custom-tools.md

* fix(coding-agent): wrap event handlers to catch errors

* docs: note async handler error handling for event bus

* feat(coding-agent): add sendMessage to tools, nextTurn delivery mode

- Custom tools now have pi.sendMessage() for direct agent notifications
- New deliverAs: 'nextTurn' queues messages for next user prompt
- Fix: hooks and tools now share the same eventBus (was isolated before)

* fix(coding-agent): nextTurn delivery should always queue, even when streaming
    Nico Bailon · 2026-01-04 21:36:19 +01:00
    9c9e6822e3
  • Rework custom tools API with CustomToolContext 
    - CustomAgentTool renamed to CustomTool
- ToolAPI renamed to CustomToolAPI
- ToolContext renamed to CustomToolContext
- ToolSessionEvent renamed to CustomToolSessionEvent
- Added CustomToolContext parameter to execute() and onSession()
- CustomToolFactory now returns CustomTool<any, any> for type compatibility
- dispose() replaced with onSession({ reason: 'shutdown' })
- Added wrapCustomTool() to convert CustomTool to AgentTool
- Session exposes setToolUIContext() instead of leaking internals
- Fix ToolExecutionComponent to sync with toolOutputExpanded state
- Update all custom tool examples for new API
    Mario Zechner · 2025-12-31 12:05:24 +01:00
    568150f18b
  • refactor(coding-agent): fix compaction for branched sessions, consolidate hook context types 
    Compaction API:
- prepareCompaction() now takes (pathEntries, settings) only
- CompactionPreparation restructured: removed cutPoint/messagesToKeep/boundaryStart, added turnPrefixMessages/isSplitTurn/previousSummary/fileOps/settings
- compact() now takes (preparation, model, apiKey, customInstructions?, signal?)
- Fixed token overflow by using getPath() instead of getEntries()

Hook types:
- HookEventContext renamed to HookContext
- HookCommandContext removed, RegisteredCommand.handler takes (args, ctx)
- HookContext now includes model field
- SessionBeforeCompactEvent: removed previousCompactions/model, added branchEntries
- SessionBeforeTreeEvent: removed model (use ctx.model)
- HookRunner.initialize() added for modes to set up callbacks
    Mario Zechner · 2025-12-31 02:24:24 +01:00
    ddda8b124c
  • Refactor: move compaction code to src/core/compaction/ 
    - Move compaction.ts to src/core/compaction/compaction.ts
- Extract branch summarization to src/core/compaction/branch-summarization.ts
- Add index.ts to re-export all compaction utilities
- Update all imports across the codebase
    Mario Zechner · 2025-12-30 22:42:23 +01:00
    fd13b53b1c
  • Make CompactionEntry and CompactionResult generic with details field 
    - CompactionEntry<T> and CompactionResult<T> now have optional details?: T
- appendCompaction() accepts optional details parameter
- Hooks can return compaction.details to store custom data
- Enables structured compaction with ArtifactIndex (see #314)
- Fix CompactionResult export location (now from compaction.ts)
- Update plan with remaining compaction refactor items
    Mario Zechner · 2025-12-30 22:42:18 +01:00
    d96375b5e5
  • Custom tools with session lifecycle, examples for hooks and tools 
    - Custom tools: TypeScript modules that extend pi with new tools
  - Custom TUI rendering via renderCall/renderResult
  - User interaction via pi.ui (select, confirm, input, notify)
  - Session lifecycle via onSession callback for state reconstruction
  - Examples: todo.ts, question.ts, hello.ts

- Hook examples: permission-gate, git-checkpoint, protected-paths

- Session lifecycle centralized in AgentSession
  - Works across all modes (interactive, print, RPC)
  - Unified session event for hooks (replaces session_start/session_switch)

- Box component added to pi-tui

- Examples bundled in npm and binary releases

Fixes #190
    Mario Zechner · 2025-12-17 16:03:23 +01:00
    e7097d911a
  • feat(coding-agent): implement hooks system 
    - Add hooks infrastructure in core/hooks/ (loader, runner, types)
- HookUIContext interface with mode-specific implementations
- Interactive mode: TUI-based selector/input/confirm dialogs
- RPC mode: JSON protocol for hook UI requests/responses
- Print mode: no-op UI context (hooks run but can't prompt)
- AgentSession.branch() now async, returns { selectedText, skipped }
- Settings: hooks[] and hookTimeout configuration
- Export hook types from package for hook authors

Based on PR #147 proposal, adapted for new architecture.
    Mario Zechner · 2025-12-09 22:17:12 +01:00
    04d59f31ea
  • Add auto-compaction events to AgentSession 
    - Add AgentSessionEvent type extending AgentEvent with auto_compaction_start/end
- Emit events when auto-compaction starts and completes
- TUI shows loader during auto-compaction with escape to cancel
- Rebuilds chat UI when auto-compaction succeeds
    Mario Zechner · 2025-12-09 01:51:51 +01:00
    91b89578c1
  • WP9+WP10: Add AgentSession session management and utility methods
    Mario Zechner · 2025-12-09 00:14:47 +01:00
    934c2bc5d3
  • WP8: Add AgentSession bash execution
    Mario Zechner · 2025-12-09 00:13:10 +01:00
    94ff0b0962
  • WP2: Create AgentSession basic structure + update plan for keep-old-code strategy
    Mario Zechner · 2025-12-09 00:05:06 +01:00
    29d96ab25a
  • WP1: Create bash-executor.ts with unified bash execution
    Mario Zechner · 2025-12-09 00:01:36 +01:00
    3f305502cd