Pi Mono: Schema Migration and Execution Reliability
The codebase is migrating validation from TypeBox to pi-schema across the agent stack and Chord contracts, with fingerprints preserved but breaking API changes. Separate fixes tighten reliability for durable execution, routed hosts, and extension updates.
Duration: PT2M18S
Episode overview
This episode is a short developer briefing from Pi Mono.
It explains recent repository work in plain language.
- Show: Pi Mono
- Published: 2026-11-02T06:05:36Z
- Audio duration: PT2M18S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Monday, November 2nd, 2026, and this is Pi Mono.
The lead story is a coordinated migration off TypeBox onto pi-schema for validation, touching the agent stack and Chord contracts, alongside fixes for execution edge cases where timing and restarts could cause failures.
First, schemas. Two commits, be-zero-three-nine-f-b and six-five-three-six-f-eight-zero, move Chord schema helpers and tool argument validation to pi-schema. The JSON output and stored data fingerprints are unchanged, proven against stores written by the old code. For developers, there are two catches: validation…
Second, reliability under waits and restarts. In PR 11672, code mode deadlines now suspend while waiting for human input, with the wait interval persisted in the durable run document so a restart preserves the remaining budget. Overlapping waits share one interval, and late events can't reopen a resolved wait.…
Also noteworthy: commit zero-f-two-one-a-three-three reuses syntax highlighting and rendered markdown blocks in the T-U-I to cut re-render work while streaming, and PR 11659 adds model G-L-M 5.3 to the individual token plan allowlist.
What's next: expect to update imports for tool…
Nearby episodes from Pi Mono
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