projectx AGENTS.md

A project instruction file describing ProjectX's architecture, technology choices, documentation, and domain rules. A monorepo is one repository containing multiple related applications or packages; spec-driven development means building from written requirements.

In plain words
What is it for?
Use it when working on ProjectX's React frontend, NestJS backend, PostgreSQL database, Temporal workflows, Turbo monorepo, or OpenSpec changes.
Why use it?
It gives coding agents the project context they need to follow the established frontend, backend, workflow, infrastructure, and specification rules.

Instructions file for CodexOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/proyecto26/projectx/agents-md
Clone the repo
git clone --depth 1 https://github.com/proyecto26/projectx

Made for: Codex, OpenCode.

Per session 1,313 This file is loaded in full into every session.
When invoked 1,313 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.01313 $0.01313
Opus 5 $0.00656 $0.00656
Sonnet 5 $0.00263 $0.00263
Haiku 4.5 $0.00131 $0.00131

Measured 2d ago against content hash 9fb9861b6a6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

projectx 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 2d 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 · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ProjectX

Full-stack event-driven application using Temporal workflows and React Router v7.

Tech Stack

  • Package Manager: pnpm
  • Frontend: React 19, React Router v7, Vite, TailwindCSS (DaisyUI)
  • Backend: NestJS, PostgreSQL
  • Orchestration: Temporal
  • Monorepo: Turbo
  • Spec-Driven Development: OpenSpec

Documentation

Project Context

Domain Rules (Detailed Instructions)

OpenSpec Specifications

  • Active Changes: openspec/changes/ - Work-in-progress feature specs and tasks.
  • Committed Specs: openspec/specs/ - Finalized specifications for implemented features.

Spec-Driven Development (OpenSpec)

Use OpenSpec to structure work around explicit specifications before writing code. This ensures AI agents have clear context and requirements.

Workflow

  1. Create a change: /opsx:new <feature-name>
  2. Plan artifacts: /opsx:ff (fast-forward all) or /opsx:continue (step-by-step)
  3. Implement tasks: /opsx:apply
  4. Verify implementation: /opsx:verify
  5. Archive completed work: /opsx:archive

Read the full file on GitHub · 117 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. 2d ago First seen · 117 lines · 1,313 tokens per session scan A 9fb9861b6a6c

Subscribe to this mod's changes

projectx AGENTS.md is an instructions file published in the GitHub repository proyecto26/projectx (83 stars, last pushed 4mo ago), licensed MIT. It adds 1,313 tokens to every session, about $0.0066 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.