- Replaced `PI_OWNED_TOOLS` lookups and owned-dialect documentation in `agent-loop.ts` and `types.ts` with `PI_DIALECT`.
- Added `prompt-tools-loop.test.ts` coverage that an unset `config.dialect` still selects Hermes from `Bun.env.PI_DIALECT`.
- Documented the breaking `PI_DIALECT` rename in `packages/agent/CHANGELOG.md`.
- Renamed ToolCallSyntax type to Dialect and Grammar interface to DialectDefinition across all packages.
- Moved grammar directory to dialect and updated all import paths in agent, ai, catalog, and coding-agent packages.
- Added renderTranscript and renderThinking methods to DialectDefinition, enabling native dialect-aware conversation serialization.
- Consolidated rendering utilities into new dialect/rendering.ts with shared helpers for ChatML, legacy text, and dialect-specific formatting.
- Updated conversation serialization in agent and coding-agent to use dialect.renderTranscript() for native turn envelope rendering.
- Updated compaction, branch summarization, and session dump formatting to pass preferred model tool syntax into conversation serialization.
- Enhanced shared serializers to render assistant tool calls and tool results through grammar envelopes when syntax is available, with the prior compact format as fallback.
- Aligned prompt, preview, and test fixtures to the new transcript tags: `[Think]`, `[Tool Call]`, and `[Tool Result]`.
- Added an `interruptible` field to AgentTool and documented when it is honored.
- Updated immediate-mode tool execution to poll steering during in-flight interruptible calls and abort them when steering is queued.
- Marked the coding `job` tool as interruptible and added tests covering mid-wait aborts versus boundary-only steering drain.
- Added model-to-syntax mapping in catalog with preferred tool-call syntax API.
- Added `ToolExample` typing and `ToolCallSyntax` exports across tool/grammar interfaces.
- Added syntax-aware tool example rendering through provider-specific grammar invocations.
- Added `exampleSyntax` context flow and example metadata so rendered prompts include examples.
- Added optional Agent and SDK tool-call syntax controls (`toolCallSyntax`, `PI_OWNED_TOOLS`) for owned calls.
- Added in-band grammar scanners and renderers for Anthropic, DeepSeek, GLM, Hermes, Kimi, PI, and Qwen3.
- Added supportsTools propagation and model schema updates to route unsupported models to fallback syntax.
- Replaced stream-markup parsing with syntax-specific in-band scanners and event conversion.
- agent-loop: raise repetition-detection floor to 180 chars and clear thinking
replay anchors when collapsing a detected loop.
- providers/google: ignore empty text parts, retain terminal thoughtSignatures,
and stop function-call signatures clobbering the prior block.
- autolearn: capture goal-mode at the turn boundary; harden managed-skill writes
against hard-links/symlinks (O_NOFOLLOW + nlink); refuse minting managed skills
whose name an authored skill already claims.
- eager tasks: thread agentKind through the session so a custom top-level agentId
still gets always-mode delegation; split Eager Tasks prompt into hard vs soft.
- title-generator: race the online title model against a local tiny-model fallback.
- eager-todo: keep the soft reminder aligned with the todo init schema.
- mcp/stdio: keep close() detaching the read loop instead of awaiting it.
- stream loop: fix collapsing and tool-call thought-signature handling.
- Validated queued toolChoice against active tools in agent and coding-agent sessions.
- Rejected queued forced choices with reason "unavailable" when selected tools were inactive.
- Dropped provider toolChoice payloads when requested function tools were not offered.
- Probed Tokio worker-thread support and fell back to current-thread runtime creation.
- Replaced Azure and OpenAI provider calls with `postOpenAIStream` flow.
- Fixed stream error handling by retaining status, headers, and body on failures.
- Fixed stream parsing by handling raw JSON SSE frames and `[DONE]` events.
- Added `OpenAIHttpError` with parsed messages and timeout-aware retry behavior.
- Added remote-compaction tests for timeout, abort, and 500-fallback behavior.
- Re-polled steering at the loop yield boundary and included it in the pre-stop pending batch so late messages are processed immediately.
- Added session-side draining for stranded queued messages, scheduling an auto-continue when a prompt settles and follow-ups or steers remain.
- Added a regression test for late steering injection at yield and updated mid-turn collab prompt handling to keep steering messages in the pending display queue until consumed.
- Added optional `useless` flags to tool result types and payload builders.
- Added `pruneUseless` and `dropUeless` options to control uneventful result pruning.
- Changed compaction and shake passes to prune or ignore non-error useless tool results.
- Changed conversation serialization to omit useless toolCall/toolResult pairs from output.
- Added coverage for useless tagging, pruning, and serialization behavior.
- Updated run-summary test mocks to track tool completion and only surface steering messages after the first task finishes.
- Reworked steering message retrieval from call counts to completion-and-drain state so pre-chat polls no longer block tool execution.
- Revised task prompt guidance to require batching multiple `tasks[]` in one call when subagents share context.
- Added optional `hasSteeringMessages` config hook and limited steering checks to boundaries.
- Fixed interrupted tool-batch steering by keeping queued messages until boundary handling.
- Added idle text and image submissions to steer queueing when no input waiter exists.
- Auto-continued resumable sessions after queued steering and preserved submit metadata.
- Renamed all functions, types, and constants in @oh-my-pi/snapcompact to namespace-relative names (`snapcompactCompact` → `compact`, `renderSnapcompactFrames` → `renderMany`, `snapcompactFrameCount` → `frames`, `SnapcompactShape` → `Shape`, `SNAPCOMPACT_SHAPES` → `SHAPES`, …).
- Converted every consumer to `import * as snapcompact` member access: `agent/compaction.ts`, `coding-agent` `agent-session.ts`/`session-manager.ts`/`snapcompact-inline.ts`, and all affected tests.
- Renamed internal `geometry` locals to `geo` in `snapcompact.ts` to avoid TDZ collisions with the new `geometry` export.
- Updated `docs/compaction.md` prose and added a Breaking Changes entry to the snapcompact changelog documenting the full rename map.
- Mapped Codex `end_turn:false` terminal events to `pause_turn` stop details in response stream parsing.
- Updated `agent-loop` to re-sample `pause_turn` turns, reset on tool calls, and cap continuations at 8.
- Added coverage for pause-turn mapping and continuation-capping in agent and AI stream tests.
- Extended `AgentTool.concurrency` to accept per-call resolver functions and resolved concurrency mode from each tool call, falling back to exclusive on resolver errors.
- Updated BashTool to schedule non-PTY calls as shared and PTY calls as exclusive so non-interactive bash calls can run in parallel within one message.
- Tracked in-use persistent shell sessions in the bash executor and routed overlapping calls on the same session key to isolated one-shot shells while preserving owner session availability.
- Added a new @oh-my-pi/snapcompact package and redirected compaction call sites to it.
- Added provider-aware snapcompact shape resolution for model-specific mixed-frame behavior.
- Added optional image detail support by extending ImageContent and passing hints through OpenAI providers.
- Added native snapcompact render options, including 5x8/8x8 font loading and palette/geometry controls.
Adds snapcompactCompact() in compaction/snapcompact.ts: instead of an LLM-generated summary, discarded history is printed onto dense 2576px PNG frames with the public-domain X.org 5x8 pixel font and re-attached to the compaction summary message as image blocks. Fully local — no model call; ~7x cheaper than raw text at near-parity recall. CompactionSummaryMessage now charges per attached frame in estimateTokens(), frames persist under preserveData.snapcompact with an 8-frame budget that evicts middle-out (session-head frame pinned so head and tail both survive). Rasterization and PNG encoding run in native code via renderSnapcompactPng().
Adds pruneSupersededToolResults() and the opt-in PruneConfig.supersedeKey hook: when a tool call shares a key with a newer one (e.g. a re-read of the same file), the older result is pruned even inside the protectTokens window and replaced with a [Superseded by a newer read of this file] placeholder. Adds readToolSupersedeKey() and the shared splitReadSelector() implementing the read-tool path/selector grammar (including the .. range alias and L-prefix forms) so selector-free reads supersede range reads of the same file and URL-scheme paths are exempt. Strips selectors before tracking in <read-files> compaction lists, so reads dedupe to the base path and match write/edit paths when splitting read-only vs modified lists (selector-polluted lists from earlier compactions self-heal on the next pass). Gated by the new compaction.supersedeReads setting (default on).
Anthropic rejects tool_result blocks when is_error is true and content is
empty after trimming whitespace. Fill a placeholder at encode time and in
coerceToolResult so wedged sessions recover on the next request.
Added AgentLoopConfig.getDisableReasoning so the agent loop refreshes disableReasoning on every model call, matching getReasoning. Mid-run thinking-level transitions in and out of off now propagate to the next request instead of sticking on the value captured at prompt start.\n\nFixes #2239
Propagated explicit thinking-off state through the agent loop so provider requests receive disableReasoning instead of an undefined effort. Added Ollama and agent-session regressions for the :off path.\n\nFixes #2239
- Centralized catalog and registry handling on `ModelSpec` and `buildModel`, resolving compatibility at model build time.
- Removed runtime compatibility detectors and switched provider request flows to direct `model.compat` reads.
- Added compat fields (`supportsReasoningParams`, `alwaysSendMaxTokens`, `strictResponsesPairing`, `whenThinking`).
- Persisted explicit compatibility overrides through `compatConfig` in discovery and cache merge paths.
Move bundled models, model cache/manager, thinking metadata, effort helpers,
provider descriptors/discovery, wire constants, and model identity utilities
into the new @oh-my-pi/pi-catalog package.
Update pi-ai to keep provider runtime/auth concerns, move catalog provider
metadata into CATALOG_PROVIDERS, and migrate coding-agent, agent, stats, docs,
and tests to import catalog values from pi-catalog.
Split coding-agent model registry helpers into discovery, roles, and models
config modules while preserving registry orchestration.
BREAKING CHANGE: @oh-my-pi/pi-ai no longer exports catalog subpaths such as
/models, /model-cache, /model-manager, /model-thinking, /effort,
/provider-models*, discovery helpers, and provider wire constants; use the
matching @oh-my-pi/pi-catalog subpaths instead.
- Added optional FetchImpl fields to compaction, proxy, AI, coding-agent, and mnemopi options.
- Threaded injected fetch implementations through OAuth, discovery, and search/LLM request flows.
- Removed exported hookFetch utility and its package entrypoint from utils.
- Replaced global-fetch test monkeypatching with per-test FetchImpl mocks across test suites.
- Stopped aborted runs from waiting on provider iterator cleanup.
- Ran afterToolCall for completed executions after a run aborts.
- Ignored unknown Anthropic content blocks while preserving known ones.
- Kept sampling params and tool-result caching for disabled thinking.
- Clarified the `onRunEnd` documentation to note warning emission through `onTelemetryWarning` with `console.warn` fallback.
- Updated the non-fatal `onRunEnd` test to collect warnings via `onTelemetryWarning` instead of overriding `console.warn`.
- Added a short async pause in the test to let run-loop warning callbacks flush before asserting their presence.
- Normalized image-content preprocessing in agent sessions now returns early when `content` is missing or not a string/array, avoiding invalid normalization paths.
- Updated agent-loop tests to verify partial tool calls are dropped when an assistant aborts before `toolcall_end`, with run completion reported via an assistant `stopReason` of `aborted`.
- Adjusted Anthropic alignment expectations to reflect a single trailing cache-control breakpoint on the final system block.
- Removed `maxToolCallsPerTurn` from `AgentOptions`, `AgentLoopConfig`, and config serialization.
- Removed stream-loop cap enforcement, including the `toolcall_end` abort path and capped assistant messages.
- Removed Anthropic Opus 4.8 batch-cap resolver and agent-session sync logic from coding-agent.
- Updated tests and changelogs to align with uncapped tool-call behavior and dropped cap-specific cases.
- Introduced `AsideMessage` as a message-or-thunk union so aside providers can defer injection decisions.
- Updated agent loop handling to resolve aside thunks at injection time and skip entries that returned `null`, then switched the session yield queue to `drainLazy` for deferred message building.
- Added tests validating lazy aside evaluation and staleness-aware dropping when everything becomes stale after dequeueing.
- Added an agent loop test proving aside messages are delivered after tool results, before the next model request, without interrupting tool execution.
- Added a yield-queue test confirming stale entries are excluded, the queue is cleared, and re-draining yields no messages.
- Updated `buildOpenAiNativeHistory` to maintain known and custom tool-call ID sets incrementally while appending provider payload history.
- Rebuilt call-ID state when a full-snapshot payload replaced history so stale outputs were no longer emitted after reset.
- Added compaction regression tests for codex provider payload call-ID registration and stale-result dropping.
- Scope.
- Summary.
- Type.
- Added per-path edit versioning in `EditTool` to drop stale late diagnostics after later edits.
- Added deferred diagnostics queueing through `queueDeferredDiagnostics` and late-diagnostic yield batching.
- Updated `UiHelpers` to render late diagnostic file path and summary lines in the chat transcript.
- Enabled clickable read-path output for result rows, summaries, and previews.
- Resolved read links from result paths, source metadata, internal URLs, and absolutes.
- Preserved selector suffixes while rendering line-anchor hyperlinks.
- Ignored aborted signals for plain-file and directory reads while keeping conflicts-cancel behavior.
- Added tests for non-abortable read behavior and link-label rendering regression coverage.
- Reworked running-task rendering so shimmer animation is applied to descriptions instead of IDs.
- Added accent coloring for the separator and description text to keep the status line formatting consistent.
The !sawTerminalEvent guard must check signal.aborted first and throw
the caller's reason (not a generic disconnect message) so that
Agent.abort('user-interrupt') surfaces the custom reason in
errorMessage instead of overwriting it.
- Assert error event reason='error' in server disconnect test
- Add test for server-sent 'error' terminal event (verifies sawTerminalEvent
guard does not interfere with proper error flow)
- Clear timeout timers in collectEvents to prevent timer leaks
- Export ProxyMessageEventStream class (avoid ReturnType<> per AGENTS.md)
- Use hookFetch from @oh-my-pi/pi-utils instead of manual globalThis.fetch mutation
- Use Promise.withResolvers() instead of new Promise for timeout races
- Use typed Context object instead of 'as never' cast
- Add client-initiated abort test (verifies stopReason='aborted' path)
- Remove 'as IteratorResult' cast on timeout sentinel
Tests assert that streamProxy emits an error event when the SSE
stream ends without a done/error terminal event. Currently failing
because streamProxy silently ends the stream with stopReason='stop'
and empty content.
can1357