Evidence record / pi-coding-agent
A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.
2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaks
Tool boundaries received smaller repairs while SDK consumers face further API breaks. Malformed final tool JSON now fails validation with the raw arguments instead of executing a partially parsed object. Grep ignores ambient ripgrep configuration, MCP JSON accepts a leading BOM, and concurrent extension dialogs retain their own completion/stack behavior. Classifier calls can accept image input. The 1.3 SDK removes AssistantMessageFrame, AssistantMessageFrameEncoder and reduceAssistantMessageFrames(), remnants of the removed experimental harness; the surviving stream interface is still AssistantMessageEventStream. Version 1.4 replaces request telemetryContext with telemetry taking a span, removes getPiUserAgent() in favor of formatUserAgent(), and changes resolveTranscriptTools() from a boolean argument to a TranscriptToolSupport value, with foldedSystemMessages replacing anchorsAdditions. These are documented 1.4 SDK breaks, not compatibility aliases. Prompt-template empty quoted arguments and credential-aware ambiguous model selection are also repaired in 1.3.
Channel: tagged-release. Half: both. Date: 2026-10-21.
Operator consequence: Upgrade integrations that depend on reliable argument validation and dialog completion, and adapt telemetry, identity and transcript-tool integrations as well as retired frame imports. Do not interpret stricter validation as an authority boundary: a valid malicious request still needs policy. Image classification expands what a scripted workflow can do, and makes credential review more consequential because those model operations still bypass individual CLI tool hooks.
Receipt
- https://github.com/earendil-works/pi/commit/87f9a36419e8164bba77397d15c54ff39fac5e8a
- https://github.com/earendil-works/pi/commit/8c4e873899b97f6abd14bc45928ccb465f83010c
- https://github.com/earendil-works/pi/blob/v1.4.0/packages/coding-agent/CHANGELOG.md
- https://github.com/earendil-works/pi/blob/v1.3.0/packages/ai/CHANGELOG.md
- https://github.com/earendil-works/pi/blob/v1.4.0/packages/ai/CHANGELOG.md
Finding metadata
Run: 2026-10-24-weekly-digest-2026-10-13_2026-10-24-frontier-v0
Finding ID: 2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaks
Profile citations
- Pi Coding Agent / claim / tool-validation-and-sdk-breaks
- Pi Coding Agent / posture / capability
Source links
Primary links, including exact changelog lines when available.
- commit2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaksgithub.com/earendil-works/pi/commit/87f9a36419e8164bba77397d15c54ff39fac5e8acommit2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaksgithub.com/earendil-works/pi/commit/8c4e873899b97f6abd14bc45928ccb465f83010ctagged commit file2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaksearendil-works/pi / packages/coding-agent/CHANGELOG.mdtagged commit file2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaksearendil-works/pi / packages/ai/CHANGELOG.mdtagged commit file2026-10-24-pi-coding-agent-tool-boundaries-received-smaller-repairs-while-sdk-consumers-face-further-api-breaksearendil-works/pi / packages/ai/CHANGELOG.md
Versioned source: run artifact