- Removed deprecated eval prelude helpers `append`, `tree`, `diff`, `sort`, `uniq`, and `counter` from all supported runtimes.
- Cleaned up runtime implementations, protocol definitions, and UI rendering logic associated with the removed helpers.
- Updated project documentation, prompts, and test suites to reflect the reduced helper API surface.
- Recorded functional changes in the package changelog.
- Refactored `todo` tool to accept a single operation object instead of an `ops` array.
- Implemented parameter normalization to maintain backward compatibility with legacy array-based tool calls.
- Updated tool instructions, documentation, and UI rendering components to reflect the new interface.
- Added compatibility tests to verify rendering and execution for both legacy and current operation formats.
The eval agent() helper used `agent_type`/`return_handle` (snake_case) in
Python/Ruby/Julia and `agentType`/`returnHandle` (camelCase) in JS, forcing
the prelude docs to repeat every option twice ("JS same but camelcased").
Both are now single lowercase words identical across all four runtimes, and
`agent` matches the `task` tool's existing agent-selection parameter.
- Renamed across py/js/rb/jl preludes (signatures, forwarding, docstrings).
- Renamed the `__agent__` bridge wire protocol + `EvalAgentArgs` (`agentType`
→ `agent`, `returnHandle` → `handle`) so no prelude-side remap is needed.
- Updated prompt docs (workflow-notice.md, tools/eval.md), repo docs
(docs/tools/eval.md, docs/python-repl.md), and all bridge/prelude tests.
- CHANGELOG: Breaking Changes entry under [Unreleased].
- Introduced `generateHandoffFromContext` to enable provider-aware oneshot generation and improved cache hit rates via the live-turn pipeline.
- Updated `buildSideRequestContext` to support pinning custom system prompts, preventing per-turn hook leakage during handoff.
- Added concurrency guards across CLI and RPC modes to block manual `/handoff` requests while a session is actively streaming.
- Standardized handoff execution to force `toolChoice: "none"` and enforce consistent cache-routing behavior.
- Added a `share.store` configuration option (`blob` | `gist`) that allows users to choose between the default share server or a GitHub gist for storing exported session data.
- Changed the default upload target from secret GitHub gists to the share server to avoid GitHub API rate limits for shared sessions.
- Enabled fallback to the share server when a gist upload fails or the GitHub CLI is unavailable.
- Removed the `readHashLines` setting to consolidate hashline display logic.
- Simplified `resolveFileDisplayMode` to derive hashline visibility solely from the active edit mode.
- Added automatic cleanup of the `readHashLines` key from existing configuration files.
Reconcile the friendlyName secret feature with upstream's secret-obfuscation
refactor (7302a7ae96):
- obfuscator.ts: keep upstream's typed message-transformer layer
(deobfuscateAgentMessages/AssistantContent/ToolArguments, obfuscateMessages,
narrow obfuscateProviderContext, obfuscateToolArguments, mapJsonStrings) as
the canonical API; retain the PR's SecretObfuscator class internals
(friendlyName + keyed-hash placeholders, case hints, legacy aliases,
idempotent re-obfuscation, replace-mode hardening).
- Integrate upstream's <8-char secret toning + hasRealSec into the class.
- Thread allowLegacyAliases through the typed deobfuscation transformers so
display-only transcripts still restore legacy index-derived aliases while
agent-feeding paths stay keyed-only.
- Lengthen friendlyName test secrets to >=8 chars to satisfy toning; tool-result
content is no longer deobfuscated (typed transformers walk assistant/summary
roles only).
- Implemented `waitForSelector` and `waitForNavigation` methods in the browser tool API.
- Introduced per-operation fail-fast budget management with dynamic timeout clamping.
- Added validation for selector engines to reject unsupported Playwright-only platform features.
- Standardized error handling to provide descriptive, named timeouts for stalled browser operations.
- Promoted `write` and `find` tools to `essential` status to ensure they are always available regardless of discovery mode.
- Updated `DEFAULT_ESSENTIAL_TOOL_NAMES` to include these tools by default.
- Updated documentation and tests to reflect the change in default essential tool availability.
Fixes#3165
- Implemented `tab.ariaSnapshot()` to capture and represent page structures as ARIA-tree YAML.
- Introduced `tab.ref()` and ref-based selector parsing to enable precise element interaction via unique ARIA identifiers.
- Integrated automated script bundling for cross-environment evaluation of ARIA snapshot logic.
- Updated browser action methods to resolve and target elements using ARIA-ref handles.
- Removed the logic that forced sequential tool calling when custom tools were present in both Codex and OpenAI providers.
- Exported `buildTransformedCodexRequestBody` for testing purposes.
- Implemented message deduplication in `AdvisorRuntime` to collapse verbatim re-injected primary context (plan rules/approved plans) between turns.
- Reduced token consumption by replacing identical primary context segments with a status marker.
- Updated history formatter to allow expansion of load-bearing context types specifically, while retaining one-line summaries for other custom messages.
- Privatized the legacy `nextToolChoice` method to `#nextHardToolChoice` to ensure all tool-choice directives flow through the unified `nextToolChoiceDirective` entry point.
- Eliminated redundant dual entry points for fetching tool choices, which previously bypassed the soft pending-preview lifecycle.
- Updated test suites to consume `nextToolChoiceDirective` where appropriate to maintain consistency with internal agent-loop logic.
- Implement JSON repair and strict argument validation to sanitize raw payloads and redact sensitive information from agent event logs.
- Add automatic authentication fallback for benchmark model resolution to ensure consistent performance testing across providers.
- Refactor search tool API parameters by replacing `i` with a case-sensitive `case` boolean flag for clarity.
- Update session history formatting to ensure empty objects are consistently serialized as `{}` instead of empty strings.
- Removed the customizable `timeout` parameter from the tool schema and implementation.
- Fixed the timeout duration to 5 seconds to simplify tool usage.
- Updated documentation and error messages to advise narrowing search patterns instead of adjusting timeouts.
- Switch all UI components and tests from sharp box corners (`boxSharp`) to rounded ones (`boxRound`).
- Update `Theme` to re-export sharp junction symbols (tees and cross) under `boxRound` to ensure consistent divider rendering in rounded boxes.
- Remove outdated architectural notes regarding forced tool-choice queues in documentation.
- Removed legacy `pinnedFrames` logic and state, simplifying compaction to unconditionally re-render from the full source archive.
- Updated `historyBlocks` to reliably order archive regions (text head, imaged middle, text tail) based on the re-rendered state.
- Updated documentation and summary templates to reflect the transition to text-first compaction and the use of the new `FILES` section.
- Replaced inconsistent list truncation messages with a standardized `[...N items elided...]` format across all scrapers.
- Updated documentation reference to use consistent variable naming convention.
- Standardized elision markers across all tool outputs and filters to use cohesive `[...N [type] elided...]`, `[...Nln elided...]`, and `[...xB elided...]` syntax.
- Updated documentation, prompts, and test expectations to reflect the unified elision format.
- Improved transcript viewer robustness by preventing content aliasing through path-inclusive signature hashing.
- Added logic to clear stale transcript content when associated session files are deleted, accompanied by verifying test cases.
- Implemented `AdvisorTranscriptRecorder` to persist advisor sessions to append-only `__advisor.jsonl` files.
- Integrated transcript recording into agent sessions with managed flushing, atomic file switching, and synthetic turn attribution.
- Restricted advisor-kind agents by excluding them from rosters, history protocols, messaging, and interactive agent commands.
- Reserved the `__advisor` filename stem across the output manager and task registry to prevent task ID collisions.
- Removed qrcode and qrcode-view subcommands from the collab command.
- Updated showCollabLink to always trigger QR code display.
- Refactored internal verb logic to simplify session sharing flow.
- Added collab.webUrl and rendered browser links as web UI wrappers whose fragments carry relay links.
- Added one-shot /collab qrcode and /collab qrcode-view commands with terminal QR rendering.
- Updated coding-agent and collab-web parsers to prefer parseable wrapper fragments while preserving legacy links.
- Added regression tests and changelog entries for split-host collab links and QR commands.
- Centralized decoding of tmux's `extended-keys` control sequences (`csi-u` and `xterm` formats) into a shared utility.
- Updated the multi-line editor and single-line input to use this decoder, preventing escape tails (e.g., `[27;5;106~`) from leaking into the text buffer.
- Added parity to the single-line input by explicitly stripping any remaining control characters after decoding to ensure data integrity.
- Removed the `fflate` dependency in favor of using `node:zlib` for ZIP operations.
- Updated documentation and internal code comments to reflect the transition to native `node:zlib` DEFLATE support.
- Centralized archive operations into a new `utils/zip.ts` module with unified support for ZIP, tar, and tar.gz formats.
- Optimized ZIP reading using lazy, ranged central-directory access and implemented ZIP64 support for large files.
- Hardened archive extraction with directory traversal protection and configured memory limits for loading and extraction.
- Refactored tool-specific logic to utilize the new centralized utility and deleted the redundant `archive-reader.ts`.
- Derived the `SEARCH_PROVIDER_ORDER`, `SEARCH_PROVIDER_PREFERENCES`, and `SEARCH_PROVIDER_LABELS` metadata dynamically from a single `SEARCH_PROVIDER_OPTIONS` source of truth.
- Reprioritized the default search provider sequence, shifting higher-order choices like Perplexity, Gemini, and Anthropic ahead of Tavily and Brave.
- Updated documentation to reflect the new search provider evaluation order.
- Migrated all wire protocol, schema definitions, and tools validation from Zod to ArkType across multiple packages.
- Updated extension runtimes, custom tools loader, and TypeBox compatibility shim to expose and use ArkType instances.
- Added a comprehensive ArkType migration guide, validation parity tests, and helper utilities.
- Removed redundant PDF asset routing and parsing implementations from the read tool.
Mathews-Tom