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- Updated Oct 2026
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Pi Mast Steer
A Pi extension that watches a coding agent's transcript for five common failure modes, including loops, drift and broken requirements, and nudges the agent when it sees one. TypeSafe's Jev, a classifier model, judges the transcript rather than an LLM.
- Stars
- 4
- Language
- TypeScript
- Reading time
- 2 min
- Published by
- Community
- Author
- dbreunig
- Last verified
- Oct 2026
- Languages
- TypeScript
- Platforms
- CLI
- Capabilities
- Open source
Highlights
- Five checks: stuck in a loop, doesn't know when to stop, wandered off, broke the brief, and says X, does Y.
- Each check maps to a concrete nudge message the agent receives when the pattern is detected.
- TypeSafe's Jev, a classifier model, judges the transcript rather than a general-purpose LLM.
- Example nudge for drift: restate the task's objective and confirm the next step serves it.
- Created and pushed 2026-10-05 with 4 stars; no license appears in the repository metadata.
Watch out
README reviewed 2026-10-17; the digest excerpt cuts off inside the fifth check's description, and the README shows no benchmark numbers, detection thresholds or key setup.
Questions about this entry
Short answers drawn from the linked project or page.
A Pi extension that watches your coding agent for five common ways agent runs go wrong and nudges the agent when it sees one. TypeSafe's Jev, a classifier model, judges the transcript.
Stuck in a loop, where a step, message or command is redone with no new reason; doesn't know when to stop; wandered off from the task; broke the brief, such as a required format or library; and says X, does Y.
Jev, TypeSafe's classifier model, judges the transcript for each of the five patterns, and when a pattern is detected the extension sends the agent a written nudge describing the problem and how to re-check the work.
They are concrete instructions listed in the README table: for drift, restate the task's objective and confirm the next step serves it; for a broken requirement, re-read the requirements and check the output against each one.
The README describes nudges: the agent is told what looks wrong and what to re-check, and the digest describes no blocking, approval or edit behavior.
Not documented in the digest: it runs inside the Pi coding agent, and the README excerpt shows the check table, not install steps, classifier configuration or whether a Jev key is required.
The GitHub user dbreunig. The repository was created 2026-10-05 and pushed the same day, with 4 stars and no forks when the sweep ran; no license is listed in the metadata.
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