vanguarstew: Instructions file for Codex

AGENTS.md

vanguarstew AGENTS.md is an instructions file for Codex, OpenCode from openvang/vanguarstew. It costs 420 tokens per session, scanned A, original, MIT.

A project instruction file for OpenVang and its Vanguarstew maintainer-intelligence component. It defines the required entry point, offline behavior, data boundaries, benchmark rules, and worker roles.

In plain words
What is it for?
Use it as the repository-wide guidance when implementing or reviewing the maintainer component, factory workers, benchmarks, offline execution, or public evidence.
Why use it?
It keeps code, tests, automation, and evaluation procedures consistent across the project. It also prevents private review material, credentials, and forward-looking benchmark information from leaking into public results.

Instructions file for CodexOpenCode

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

This is openvang/vanguarstew's own configuration. It tells Codex and OpenCode how to work on vanguarstew 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 vanguarstew configures →

Reuse

Borrowing it

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

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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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.

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Your own site · 80×15
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Per session 420 This file is loaded in full into every session.
When invoked 420 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 $0.00420 $0.00420
Opus 5.5 $0.00168 $0.00168
Sonnet 5.5 $0.00084 $0.00084
Haiku 4.5 $0.00042 $0.00042

Measured 2mo ago against content hash 00ad6fb86748, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vanguarstew 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 2mo 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 · 45 lines

How it starts

The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenVang project constitution

Durable project-wide rules for the OpenVang agent factory and the Vanguarstew maintainer-intelligence component. Code, tests, and automation must follow these rules.

Component contract

  • The maintainer component shall expose solve(repo_path, request, ...) as its stable entrypoint.
  • Managed inference parameters are supplied by the controller; agent code shall not discover or substitute credentials.
  • VANGUARSTEW_OFFLINE=1 shall select the deterministic offline stub.
  • Benchmark and live persistent memory shall remain time-safe, controller-owned, and read-only from the maintainer component.

Benchmark and execution integrity

  • Forward-looking signal shall not cross a benchmark freeze boundary.
  • Held-out repositories shall be evaluated separately from tuned repositories.
  • Public artifacts and TEE evidence shall contain only receipt-safe commitments, never raw private memory, review material, credentials, or private sources.
  • Polaris integration shall be described as execution integrity, not workload confidentiality.

Factory authority

  • Every factory worker shall declare one role contract from openvang/factory.py.
  • No role may automatically access a wallet, submit an on-chain transaction, change emissions, vote in governance, mutate GitHub, or publish.
  • Owner-level effects require a separate external approval and signing boundary; a factory ActionIntent is non-executable by design.
  • Role-private memory, including private maintainer-review material, shall never cross role boundaries or enter public, benchmark, or TEE artifacts.
  • Security QA is defensive and isolated; it may propose containment but may not perform an offensive or production mutation.

Quality gates

  • Changes under agent/, benchmark/, openvang/, or vanguarstew_runtime/ shall include matching tests.
  • ruff check . and the relevant offline test suite shall pass before release.
  • Runtime defaults shall remain dry-run, loopback-only, private, and without a GitHub write path.

Read the full file on GitHub · 45 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. 2mo ago First seen · 45 lines · 420 tokens per session scan A 00ad6fb86748

Subscribe to this mod's changes

vanguarstew AGENTS.md is an instructions file published in the GitHub repository openvang/vanguarstew (21 stars, last pushed 16d ago), licensed MIT. It adds 420 tokens to every session, about $0.0017 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 2026-08-30.

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