Pi Mono: Prompt Cache, Rendering Fixes, and Extension Hardening
Prompt cache invalidation, markdown rendering, and extension reliability dominated the day. Fixes keep cached prefixes stable across tool changes, restore CJK emphasis and tables, and prevent hung dialogs, workers, and terminal state.
Duration: PT2M37S
Episode overview
This episode is a short developer briefing from Pi Mono.
It explains recent repository work in plain language.
- Show: Pi Mono
- Published: 2026-10-21T06:08:17Z
- Audio duration: PT2M37S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
It's October 21st, 2026, and this is your Pi Mono briefing.
The throughline today is stopped waste — cached prompts being invalidated, model picks that could never succeed, and UI state left broken after edge cases.
First, prompt cache correctness. PR 11142 fixes tool updates on the Responses API invalidating the cached prefix. Previously any removal or redeclaration resent the full tool list, busting the cache for the rest of the session. Now removals are announced as text and later loads stay anchored. The open PR 11164…
Second, rendering what models actually write. PR 10730 fixes bold emphasis in Chinese, Japanese and Korean in the terminal, where closing markers next to full-width punctuation were left visible. PR 11168 brings that same fix to HTML export. Separately, PR 11185 stops an unclosed math block from swallowing markdown…
Third, agent hardening for extensions and the terminal. PR 11188 exposes the public models entry point in the extension loader, fixing missing-module errors for extensions using the thinking-level helper. Commit 3884756 stacks concurrent extension dialogs instead of replacing them and leaving promises pending…
Also notable for daily use: config files…
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