Three fixes to make CI green after the opus 4.7 and auto-bump landed:
1. github-copilot model mapper: prefer capabilities.limits.max_prompt_tokens
over the root-level context_length field (which mirrors max_context_window_tokens, i.e.
total window). Copilot's real /models response returns both for the gpt-5.x family, and
context_length inflates contextWindow with the output budget. Also restore the bundled
Copilot limits (claude-opus-4.6, gpt-5.2, gpt-5.4, gpt-5.4-mini, grok-code-fast-1) to
the values the fixed mapper produces so tests that depend on truthful offline fallbacks
pass. Update the two Copilot discovery tests whose payloads conflated context_length
with prompt capacity.
2. coding-agent task schema: make the per-task assignment description context-mode-aware.
The previous description unconditionally told agents that 'shared background belongs
in context', which is wrong for independent mode where shared context is disabled.
3. coding-agent model-registry test: update the anthropic-latest canonical collapse case
to claude-opus-4-7 since opus 4.7 is now the newest official opus in models.json.
- Updated todo start handling to set the requested task to in_progress while demoting all other in_progress tasks to pending.
- Added task note rendering in summary output by prefixing each note line with "Note:".
- Set GIT_OPTIONAL_LOCKS to 0 in git execution options and added tests for out-of-order start jumps and note summaries.
- Replaced todo_write's `ops` payload with top-level mutation fields (`phases`, `complete`, `start`, `add_notes`, etc.).
- Removed in-place task content and note updates; moved note writes to append-only `add_notes` calls.
- Matched `add_tasks.phase` by phase ID or name and appended new note text to existing notes.
- Changed execution to drop strict in-progress update sequencing, support `start`, and auto-promote next pending task.
- Updated tests and prompt docs to use direct payloads (`phases`, `complete`, `add_tasks`) instead of `ops`.
- Reworked `idle-iterator` to replace the first-event watchdog wrapper with a shared timeout handle passed through stream iteration.
- Updated Anthropic and OpenAI/Azure response-completion streams to pass the watchdog into `iterateWithIdleTimeout` and rely on unified first-event timeout logic.
- Raised the default first-stream-event timeout from 60 seconds to 100 seconds.
- Added task.simple to settings and schema with default, schema-free, and independent modes.
- Added mode-aware task schema and validation to enforce context/schema rules per simple mode.
- Updated prompts and template rendering to tailor headers and guidance for each simple mode.
- Added simple-mode capabilities and updated TaskTool execution for mode-aware context behavior.
- Added tests for independent rendering and mode-specific rejection of invalid context or schema inputs.
- Replaced Snowflake session IDs with UUIDv7 for created, forked, branched, and resumed sessions.
- Derived cache session IDs from OpenAI request options and passed them into Responses client creation.
- Used derived session IDs for OpenAI `session_id`/`x-client-request-id` headers and `prompt_cache_key`; omitted headers when retention was none.
- Added tests for UUIDv7 session creation/branching and OpenAI cache-affinity default, override, and disabled-header modes.
- Documented UUIDv7 session handling and OpenAI cache-routing fixes in package Unreleased changelogs.
The tests were using the old { sel, op, content } format which is no longer
recognized after the edit tool consolidation. Updated to use the new
{ path: 'file:selector', write/insert } format.
- Removed the standalone vim tool and normalized built-in/requested tooling to edit.
- Updated session and SDK tool activation to dedupe lowercase names and track edit state via the edit key.
- Added vim-mode argument detection and delegated edit rendering/execution into Vim handlers under edit.
- Updated Vim step handling to auto-reorder numeric-positioned commands, including cc/C/S/s/i/I/A cases.
- Renamed prompt/changelog text and test expectations to reflect edit-only tool naming and usage.
- Implemented parsing of `:j`/`:join` and `:j!`/`:join!` ex commands and mapped them to a new `join` command shape with a whitespace-trim flag.
- Added VimEngine handling for `join` to concatenate addressed lines (or the current plus next line by default), optionally normalizing whitespace and reporting line count in the status message.
- Updated vim prompt guidance, changelog notes, and tests to document and verify both normal and `:join!` join behavior.
- Removed live Vim preview state fields and priming/cleanup flow from tool execution and rendering.
- Changed vim insert-mode exit logic to close insert mode unless the final step is paused.
- Updated changelog entries and Vim edit-file prompts to clarify insertion behavior and examples.
- Updated vim tool argument handling to clone args directly and ignore __toolCallId/__cwd metadata.
- Added vim tool-call IDs across EventController, UiHelpers, and ToolExecution for per-call preview mapping.
- Extended Vim type and command parsing with update/write, edit, global, yank, and put handling.
- Added Vim engine support for new commands and motions, including gJ, g*, g#, g_, |, and gu/gU/g~.
- Reworked Vim tool flow to cache per-file engine clones, reuse tool details, and stream inserts in chunks.
- Updated vim.md and changelog to document new vim keys, ex aliases, and fixed :global preview behavior.
- Added parser and renderer tests plus a tmp/vim_test.txt fixture for chunked, cursor, and partial-insert cases.
- Removed `SearchDb` APIs and `searchDb` fields, dropping db-backed state from native and agent sessions.
- Replaced crate export `fff` with `fd`, moving fuzzy-find bindings into `fd.rs`.
- Removed `SearchDb`/picker fast-path logic from `glob` and `grep`, simplifying scan flow and dropping db args.
- Removed `SearchDb`/`getSearchDb` wiring from extension, tool, and task context constructors across coding-agent.
- Added over-indentation validation warnings in chunk-edit normalization for suspicious `~` body line formatting.
- Removed `bytes`, `fff-grep`, `fff-search`, and `blake3` deps, adding `grep-searcher = "0.1"`.
- Changed chunk edit normalization to prefer write operations, then replace, insert, then delete, with empty write values now treated as clear-content writes.
- Allowed space motions in vim input as `<Space>`, handled them as movement and rendered in error output via token display.
- Adjusted benchmark retry flow to reset files on each retry, reduced per-run call limits, and lowered the default per-turn timeout.
- Added rollback handling for pending INSERT-mode changes whenever a non-final kbd sequence leaves insert mode, and updated the resulting VimInputError with guidance for using `insert` and escaping insert transitions.
- Hardened VimTool execution by resetting stale insert state before processing commands and by only applying empty inserts when Vim remains in INSERT mode.
- Adjusted Vim search handling to mimic Vim magic escaping and taught `o`/`O` numeric prefixes to act like `Go`/`GO` line inserts, then updated the expected error message test.
- Clarified the Vim tool prompt to require `file` and clearly separate key commands from insert text.
- Added updated usage examples and best-practice guidance for whole-file replacement, line edits, search/replace, and undo.
- Documented key/mode constraints, including insert-entry requirements and required `<Esc>` handling between non-final commands.
- Fixed `G`/`gg` motions to distinguish "no count" (go to last/first line) from explicit count.
- Added parsing for literal `\x1b`/`\r` bytes and backslash escape sequences (`\r`, `\e`, `\n`, `\t`).
- Updated `#readCount` to return `hasCount` flag propagated through operator and motion resolution.
- Synced vim buffer fingerprint from disk on reuse to handle LSP writethrough reformats.
- Added `toolStrictMode` support with `all_strict`/`none`/`mixed` options to OpenAI compatibility.
- Fixed OpenAI-completion strict-mode flows by capturing failed HTTP responses and retrying once as non-strict.
- Fixed completion error reporting by surfacing captured status, headers, and JSON `type`/`param`/`code` details.
- Improved strict-schema enforcement with WeakMap memoization and circular-schema detection in sanitization.
- Fixed OpenRouter provider lookup by resolving fallback model IDs for suffix and date variants in registry resolution.
- Refactored benchmark tooling and added async RPC error-window tracking for scheduled run execution.
- Replaced deprecated `await` tool wiring with `poll` in tool exports and built-in tool registry.
- Updated bash and task prompts plus start-result messaging to direct users to the `poll` tool.
- Added effective timeout metadata to Bash tool results and rendered output to show that effective timeout.
- Implemented bounded auto-background wait logic that backgrounds jobs when the timeout window is exhausted.
- Added `vim` as an edit variant in benchmark CLI/config and rating script coverage.
- Expanded benchmark execution so `vim` is treated as a mutation tool for retries, stats, and edit intent checks.
- Adjusted `TaskTool` output schema precedence so explicit params override agent frontmatter.
- Fixed `TaskTool` success counting by excluding aborted tasks from success totals.
- Improved validation guidance in `SubmitResultTool`/`TodoWriteTool` for clearer recovery when payloads are missing or invalid.
- Added background command PID regression coverage in `executeBash` to confirm a real, terminateable PID is returned.
- Added `VimTool` in `src/tools/vim.ts` with `open`, `kbd`, `insert`, and `pause` actions.
- Implemented `src/vim/{buffer,engine,parser,commands,render,types}.ts` for interactive Vim modes and operators.
- Updated `src/tools/index.ts` to normalize `edit`/`vim` tool selection and skip the inactive edit variant.
- Added `vim` registration in `BUILTIN_TOOLS` and `toolRenderers` for discoverability and output formatting.
- Added streaming renderer snapshots with viewport, caret focus, and diff output for `vim` calls.
- Added `test/tools/vim.test.ts` and `scripts/vim-edit-benchmark.py` coverage for the new editor stack.
- Updated `AgentSession` and `createAgentSession` to resolve active edit tool names via `resolveEditToolName`.
- Filtered inactive edit variants with `filterInactiveEditToolName` so tool listings expose the active edit mode.
- Normalized requested edit-capable tool names with `normalizeToolNamesForEditMode` during activation and startup.
- Synced edit-tool mode after model changes so the active tool swaps between `edit` and `vim` automatically.
- Enabled per-file partial updates by threading `onUpdate` through `EditTool` and `executePerFile`.
- Updated `ToolExecutionComponent` to render multi-file edit `perFileResult` entries as separate boxes with pending state.
- Added `vim` as a supported edit mode and resolved mode-specific active tool names.
- Migrated chunk-edit requests from legacy `op`/`content` to `path` plus `write`, `replace`, and `insert`.
- Replaced chunk-edit internals with `put`/`replace`/`delete` operations and ID-based selection.
- Updated chunk prompts/output docs to document ID-based selectors and `write: null` deletions.
- Switched chunk and grep render output to `@`/dash-style anchors and updated file-count behavior for multi-file edits.
- Updated multi-file result rendering with distinct file counting and pending-file progress indicator.
- Refreshed chunk-mode and chunk-tree tests for the new contract and anchor style.
- Tracked `$/progress` begin/end notifications to keep active work-done progress tokens.
- Added `projectLoaded` signaling with timeout fallback while awaiting initial project load completion.
- Blocked cross-file LSP actions until project load finished to avoid premature file-index lookups.
- Handled `window/workDoneProgress/create` requests by acknowledging them for progress-capable servers.
- Extended `LspClient` with `activeProgressTokens`, `projectLoaded`, and `resolveProjectLoaded` for startup sync.
- Updated LSP regression and diagnostics tests to initialize new `LspClient` state fields.
- Added multi-file edit payload support by requiring per-entry `edits` arrays across patch, hashline, replace, and chunk modes.
- Changed edit schemas and validators to move `path` (and `sel`->`path`) and op data into each edit entry.
- Changed edit execution flow to parse `file:selector` paths, run single-entry executors per file, and return grouped per-file results.
- Updated chunk diff rendering and test expectations to emit consistent anchor gutters with spaced pipes and `^` head-line markers.
- Propagated session title source through terminal-title update calls so auto and user names are handled consistently across controllers.
- Suppressed auto-generated names in status-line segments and completion messages by falling back to cwd-based titles.
- Updated title formatter tests to verify auto-generated and user-specified session titles produce different terminal labels.
- Added hierarchical chunk grep output grouped by directory, file, and chunk with aligned chunk anchors.
- Updated chunk rendering to show clipped head/tail context with explicit truncation and expand markers.
- Changed chunk edit and streaming validation to use chunkToolEditSchema-based checks for safe edit detection.
- Enhanced grep rendering to use structured ChunkedGrepMatch data with displayPath and chunk checksum metadata.
- Updated selector-controller session-delete test mocks to include updateEditorBorderColor.
- Extended session deletion expectations to verify updateEditorBorderColor is called.
- Refined a long chunk-mode test string assertion to multiline formatting for readability.
- Updated chunk-mode and core chunk tests to use abbreviated chunk selectors introduced by path truncation.
- Adjusted expected chunk-path and error-path strings for markdown, Rust, and TLA+ fixtures to match the new naming scheme.
- Updated SIXEL sanitization assertions to check for the new "visible columns omitted" truncation message.
- Updated the chunk-mode test assertion regex to accept single-line parse-error locations.
- Removed the required L\d+-L\d+ range from the expected error pattern.
fixed retained-kernel restart and owner cleanup edge cases during recovery and disposal
tracked async user_python hooks during disposal-sensitive execution paths and hardened startup warmup tracking
strengthened cleanup and kernel lifecycle regressions to remove deadlocks, false positives, and timing flakes
scoped retained-kernel ownership to agent sessions and cleaned it up on session disposal
cleaned up warmed python owners on session startup failure and rejected new direct and tool-based python starts during disposal, including async hook, preflight, and warmup races
Add watchJobs/unwatchJobs API to AsyncJobManager to track jobs being
actively awaited via the await tool. This prevents the race condition
where jobs complete while being awaited, causing redundant system
notices that trigger unnecessary agent turns.
Changes:
- Add #watchedJobs Set to track actively awaited jobs
- Skip delivery for watched jobs in #enqueueDelivery and #runDeliveryLoop
- AwaitTool now calls watchJobs() before wait and unwatchJobs() after
- Add tests for watched job behavior
Fixes#689
- Added parse_error_lines to ChunkTree and threaded parse-error line metadata through tree creation.
- Changed count_parse_errors to return (count, line numbers) and collect recursive parse-error positions.
- Added hashline edit input resolution so computeHashlineDiff accepts loc/content edits and throws on invalid payloads.
- Fixed apply_edits error rendering to fall back to full-tree context when edited chunks have downstream parse errors.
- Added a guard in AgentSession to detect prior user messages and skip eager todo injection after the initial user turn.
- Updated session tests to assert that only the first user message triggers eager todo enforcement while follow-up prompts do not.
- Documented the behavior change in the package changelog under Unreleased.
- Added language-aware chunking for Svelte, Vue, Astro, and HTML script/style tags using `lang` aliases.
- Added markdown/html markup handling for fenced code and HTML blocks with detected injected languages.
- Added injected-subtree chunk infrastructure and build-time merge logic in `pi-natives/chunk`.
- Added tests for markdown and script-chunking embedded-language behavior in chunk-tree and chunk-mode suites.
- Added bash.autoBackground.enabled and bash.autoBackground.thresholdMs settings with defaults for background job behavior.
- Added auto-backgrounding support for long foreground bash commands with managed job state and timeout threshold.
- Updated bash prompts, job-protocol messages, and tool activation checks to use async and auto-background support.
- Added background bash completion integration with AsyncJobManager and end-to-end tests for short/long auto-background scenarios.
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