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.

2026-10-13-pi-coding-agent-compaction-and-branch-summaries-omit-thinking-blocks-in-1-2

Compaction and branch summaries omit thinking blocks in 1.2.0. serializeConversation omits thinking blocks for compaction, branch summaries, and bug reports. Replayed thinking could make a summary request larger than the live context and cause repeated failures. The code changes summary inputs; it does not erase original session records or establish a measured general cost reduction.

Channel: tagged-release. Half: both. Date: 2026-10-12.

Operator consequence: Upgrade sessions that fail compaction with oversized summaries to 1.2.0 and inspect the new summary input. Do not rely on the omission as transcript redaction.

Receipt

Finding metadata

Run: 2026-10-13-profile-refresh-2026-09-21_2026-10-13-frontier-v0

Finding ID: 2026-10-13-pi-coding-agent-compaction-and-branch-summaries-omit-thinking-blocks-in-1-2

Profile citations

Source links

Primary links, including exact changelog lines when available.

Versioned source: run artifact