What is pi-loop AGENTS.md?

Development guidance for pi-loop, a TypeScript extension that manages scheduled or event-triggered work, background monitoring, and limited subagent workflows.

Implementing or changing pi-loop features while respecting its data stores, process monitoring, recovery, and subagent boundaries.

It clarifies which parts of the system own tasks, workflows, monitoring, and worker execution, reducing architectural mistakes.

How trvon/pi-loop configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to trvon/pi-loop. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/trvon/pi-loop/master/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/trvon/pi-loop

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/trvon/pi-loop/agents-md/github.svg)](https://agentmods.dev/instructions/trvon/pi-loop/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/trvon/pi-loop/agents-md"><img src="https://agentmods.dev/badge/instructions/trvon/pi-loop/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/trvon/pi-loop/agents-md"><img src="https://agentmods.dev/badge/instructions/trvon/pi-loop/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,440 This file is loaded in full into every session.

When invoked 2,440 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.02440	$0.02440
Opus 5.5	$0.00976	$0.00976
Sonnet 5.5	$0.00488	$0.00488
Haiku 4.5	$0.00244	$0.00244

Measured 1mo ago against content hash 6d40e73b5e14, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pi-loop AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 172 lines

How it starts

The opening of the file, as written. The whole thing — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pi-loop development guide

Purpose

pi-loop is a Pi extension for scheduled/event-driven re-wakes, self-paced goals, task-driven workflows, bounded subagent orchestration, native fallback tasks, and background process monitoring.

Stack: strict TypeScript 7, ES2022, TypeBox, Vitest, and Biome.

Authority boundaries

Do not blur these domains:

LoopStore exclusively owns loops, workflow definitions/revisions/executions/history/leases, and finite subagent orchestration batches/dispatches.
TaskStore or external pi-tasks owns standalone tasks only.
/tasks, task RPC, TaskClaim, and TaskUpdate never control workflow work.
MonitorManager owns process-local monitor state; monitor recovery across Pi death is not implemented.
pi-subagents owns worker execution and global concurrency. pi-loop owns only session-scoped orchestration intent, bounded evidence, local capacity, and recovery decisions.
Ordinary pending notifications are memory-only. Orchestration wake intent survives buffer clearing/restart until valid acknowledgement, unless cancelled or retired by expiry; delivery remains at-least-once across a crash. Persisted controllers recover on resume, not while Pi is absent.

A feature that requires a cross-store workflow/task transaction violates the architecture.

Source map

src/index.ts                 extension registration and runtime wiring
src/api.ts                   supported @trevonistrevon/pi-loop/api surface
src/types.ts                 loop, workflow, revision, monitor contracts
src/store.ts                 LoopStore workflow/orchestration atomic mutations
src/workflow-admission.ts    provider-neutral blocker transition admission
src/task-store.ts            standalone native task persistence
src/*-reducer.ts             pure state transitions
src/coordinator.ts           reducer/effect coordination
src/scheduler.ts             cron scheduling and fire times
src/trigger-system.ts        cron/event/hybrid activation
src/monitor-manager.ts       child processes and bounded output
src/runtime/                 session, notification, backlog, orchestration, task-provider, monitor wiring
src/tools/                   model-facing tool definitions
src/commands/                /loop and /tasks
src/rpc/                     vendored cross-extension RPC
src/ui/                      status and tool rendering
test/                        unit, integration, property, and live harnesses

Read the full file on GitHub · 172 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed · +14 lines · +518 tokens per session 6d40e73b5e14
2mo ago Changed · +79 tokens per session f8f6bfc236ee
2mo ago Changed · +30 tokens per session eda571f6d67c
2mo ago Changed · +44 tokens per session bdd44b05fad1
2mo ago First seen · 158 lines · 1,769 tokens per session scan A 636935f76c41

Subscribe to this mod's changes

pi-loop AGENTS.md is an instructions file published in the GitHub repository trvon/pi-loop (15 stars, last pushed 8d ago), licensed MIT. It adds 2,440 tokens to every session, about $0.0098 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

pi-loop AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
pi-loop AGENTS.mdtrvon/pi-loop	Instructions file	15	8d ago	MIT	A	2,440	Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
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vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	1,907	GitHub Copilot

pi-loop: Instructions file for Codex