symphlo: Instructions file for Codex

AGENTS.md

symphlo AGENTS.md is an instructions file for Codex, OpenCode from huisezhiyin/symphlo. It costs 1,464 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for Symphlo, a system that coordinates work between independent agents, applications, tools, scripts, computers, and people through shared handoff rules.

In plain words
What is it for?
Use them when planning or implementing changes in Symphlo, especially changes affecting public contracts, collaboration flows, tests, or release evidence.
Why use it?
They clarify what the product is, which files must be read first, who owns decisions, and which boundaries contributors must respect.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is huisezhiyin/symphlo's own configuration. It tells Codex and OpenCode how to work on symphlo itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything symphlo configures →

Reuse

Borrowing it

Nothing to install: this file belongs to huisezhiyin/symphlo. 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/huisezhiyin/symphlo/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/huisezhiyin/symphlo

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.

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README.md
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Your own site
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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.

agentmods 80×15 button for symphlo AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/huisezhiyin/symphlo/agents-md"><img src="https://agentmods.dev/badge/instructions/huisezhiyin/symphlo/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,464 This file is loaded in full into every session.
When invoked 1,464 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01464 $0.01464
Opus 5 $0.00732 $0.00732
Sonnet 5 $0.00293 $0.00293
Haiku 4.5 $0.00146 $0.00146

Measured 10d ago against content hash 5fabb3f2361a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

symphlo 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 10d 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 · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS

默认用中文交流;公共 API、协议字段、代码标识符和对外开发者文档使用英文。

Read First

进入 workspace 后按顺序阅读:

  1. PROJECT_KNOWLEDGE.md
  2. PROJECT_SPEC.md
  3. README.md
  4. PUBLIC_SOURCE_MANIFEST.md
  5. 当前 task 对应的代码和测试

Owner Model

  • 主 Agent 是 owner / decider / implementer / verifier。
  • 中等及以上任务先明确 goal、scope、affected contracts、validation、risks 和 non-goals,获得 checkpoint 后再实现。
  • 一次只推进一个最小可验收 task;每次收敛都回写受影响的 public contract、tests 和 release evidence。
  • 保留用户已有改动;不重置、不清理、不顺手修无关文件。

Product Boundaries

  • Symphlo is the durable Flow and collaboration control plane in the active Symphlo + Clerklet product portfolio. The historical huisezhiyin/agent-flow project is retired and must not receive new product work.
  • Symphlo coordinates multiple independent executors, not only fixed Agent chains. Agents, applications, MCP, HTTP, CLI, scripts, compute and Humans may collaborate through the same versioned Node and handoff contracts.
  • Fixed and repeated orchestration is one strong Flow shape, not the complete product definition. Multi-Agent and multi-application collaboration is a core product scenario.
  • Symphlo is not a general low-code platform and not an Agent UI shell.
  • An Agent is a first-class Node executor. It may keep its internal loop, while Symphlo owns observable inputs, effects, executor identity, events, accepted results, Context and Artifacts.
  • Symphlo guides Agent work through external task boundaries; it does not modify, expose or claim control over private Agent reasoning.
  • Loop ownership slides with explicit Node granularity: broad Agent Nodes preserve more Agent autonomy, while finer semantic boundaries give the Flow more orchestration, evidence and recovery responsibility.
  • Do not infer atomic work from a small task. Agent Node may contain an opaque loop; model.task + model_cli guarantees one adapter request, while tool.task guarantees one fixed semantic CLI, MCP or HTTP operation and records symphlo.tool-call-evidence.v1.
  • Flow controls what / who / when / dependencies / authority / handoff; each Agent or application controls how inside its Node boundary.
  • Flow definitions, Run state, Context, Artifacts and history are product truth. Agent sessions and conversations are not.
  • The public product must remain agent-agnostic and capability/adapter-driven.
  • Clerklet is the separate standalone Agent and an optional reference participant. Neither repository may become the other's hidden runtime, database or source-path dependency.
  • Canvas is optional infrastructure and must not define product identity or become the source of truth.

Read the full file on GitHub · 103 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.

  1. 10d ago First seen · 103 lines · 1,464 tokens per session scan A 5fabb3f2361a

Subscribe to this mod's changes

symphlo AGENTS.md is an instructions file published in the GitHub repository huisezhiyin/symphlo (21 stars, last pushed 16d ago), licensed Apache-2.0. It adds 1,464 tokens to every session, about $0.0073 per session on Opus 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 2026-08-30.

Related

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