What is dsh-codex-app-server AGENTS.md?

Repository instructions for a TypeScript service that manages agent sessions and communicates through the Codex App Server. They describe the project layout, required tools, commands, coding rules, and test expectations.

Working on source files, running builds and tests, checking types and formatting, validating the App Server protocol, and keeping credentials out of recorded fixtures.

They give contributors a shared way to build, check, and test changes without guessing where code belongs or which commands to run.

How LyleMi/dsh-codex-app-server configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to LyleMi/dsh-codex-app-server. 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/LyleMi/dsh-codex-app-server/master/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/LyleMi/dsh-codex-app-server

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/lylemi/dsh-codex-app-server/agents-md/github.svg)](https://agentmods.dev/instructions/lylemi/dsh-codex-app-server/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/lylemi/dsh-codex-app-server/agents-md"><img src="https://agentmods.dev/badge/instructions/lylemi/dsh-codex-app-server/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/lylemi/dsh-codex-app-server/agents-md"><img src="https://agentmods.dev/badge/instructions/lylemi/dsh-codex-app-server/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 684 This file is loaded in full into every session.

When invoked 684 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	$0.00684	$0.00684
Opus 5.5	$0.00274	$0.00274
Sonnet 5.5	$0.00137	$0.00137
Haiku 4.5	$0.00068	$0.00068

Measured 2mo ago against content hash d6878fd1e00d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dsh-codex-app-server 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 · 30 lines

How it starts

The opening of the file, as written. The whole thing — 30 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

Production TypeScript lives in src/. Top-level modules cover agent lifecycle, configuration, process management, and DSH bindings; JSONL transport and App Server handling are under src/wire/, while session projection is under src/projection/. Tests are flat tests/*.spec.ts files, with the opt-in real Codex smoke test at tests/real-codex.e2e.ts. Protocol recordings belong in tests/fixtures/app-server/ and must be scrubbed of credentials, account data, tokens, and home paths. Design and security rationale live in docs/; maintenance scripts live in scripts/. Generated lib/ and coverage/ output must not be committed.

Build, Test, and Development Commands

Use Node.js 22.19+ and pnpm 10.15.0.

corepack enable && pnpm install --frozen-lockfile installs the locked toolchain.
pnpm build compiles src/ into lib/.
pnpm test runs the Vitest suite once; pnpm test:coverage enforces coverage.
pnpm typecheck, pnpm lint, and pnpm format:check run focused static checks.
pnpm protocol:check verifies the installed Codex App Server contract against the reviewed fixture.
pnpm check runs the complete merge/release gate, including Reforge and package validation.
RUN_REAL_CODEX=1 pnpm test:e2e runs the credential-isolated real CLI smoke test when Codex is available.

Coding Style & Naming Conventions

Follow Prettier output: two-space indentation, single quotes, and no semicolons. Keep TypeScript strict and use import type for type-only imports. Name files with lowercase descriptive nouns (for example, wire/transport.ts); use PascalCase for types/classes and camelCase for functions and variables. Preserve explicit ownership, bounded resources, and fail-closed protocol behavior.

Testing Guidelines

Use Vitest and name unit/integration tests tests/<area>.spec.ts. Add regression coverage beside the affected boundary. V8 thresholds are 80% for lines, functions, and statements, and 70% for branches. Protocol changes require pnpm protocol:check, sanitized fixtures, compatibility documentation, and the real smoke test when credentials are safely available.

Read the full file on GitHub · 30 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.

2mo ago First seen · 30 lines · 684 tokens per session scan A d6878fd1e00d

Subscribe to this mod's changes

dsh-codex-app-server AGENTS.md is an instructions file published in the GitHub repository LyleMi/dsh-codex-app-server (3 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 684 tokens to every session, about $0.0027 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.

agent agent-framework codex codex-app-server codex-cli deepseek

dsh-codex-app-server AGENTS.md next to 6 instructions from other repositories
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dsh-codex-app-server AGENTS.mdLyleMi/dsh-codex-app-server	Instructions file	3	2mo ago	Apache-2.0	A	684	Codex, OpenCode
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dsh-codex-app-server: Instructions file for Codex