personal-site AGENTS.md

personal-site AGENTS.md is an instructions file for Codex, OpenCode from mldangelo/personal-site. It costs 3,656 tokens per session, scanned A, original, MIT.

Project-specific instructions for coding agents working on a Next.js personal portfolio website.

In plain words
What is it for?
Use them when editing the portfolio, running its checks, formatting code, updating content, or preparing changes for version control.
Why use it?
They explain the project’s commands, file layout, coding conventions, and testing workflow so changes fit the existing site.

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/mldangelo/personal-site/agents-md
Clone the repo
git clone --depth 1 https://github.com/mldangelo/personal-site

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.

agentmods badge for personal-site AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/mldangelo/personal-site/agents-md.svg)](https://agentmods.dev/instructions/mldangelo/personal-site/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/mldangelo/personal-site/agents-md"><img src="https://agentmods.dev/badge/instructions/mldangelo/personal-site/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,656 This file is loaded in full into every session.
When invoked 3,656 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 $0.03656 $0.03656
Opus 5 $0.01828 $0.01828
Sonnet 5 $0.00731 $0.00731
Haiku 4.5 $0.00366 $0.00366

Measured 4d ago against content hash 01a37e976c9d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

personal-site 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 4d 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 · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI coding agents working on this Next.js personal portfolio site.

Quick Commands

npm run dev          # Start dev server (localhost:3000)
npm run format       # Format with Prettier + Biome (run before committing)
npm run lint         # Biome linting
npm run type-check   # TypeScript checking
npm test             # Vitest tests
npm run build        # Production build + static export

File-scoped (faster feedback):

npx biome check path/to/file.tsx            # Lint single file
npm test -- ComponentName                    # Test single component

Project Structure

app/                  → Pages, layouts, global CSS
app/styles/           → Modular CSS (tokens, base, components, layout, pages)
src/components/       → React components (organized by feature)
src/data/             → Static data (resume, projects, contact)
src/hooks/            → Custom React hooks
content/writing/      → Blog posts (Markdown with frontmatter)
src/data/writing.ts   → External writing links shown on `/writing`
public/images/        → Images and favicons
docs/                 → Documentation

Code Style

Do:

  • Use TypeScript strict mode, functional components with hooks
  • Style with CSS custom properties in app/styles/ (tokens in tokens/, components in components/)
  • Keep components small and focused
  • Use existing patterns from similar components
  • Mark client components with 'use client'
  • Follow conventional commits: feat:, fix:, chore:, docs:
  • Run npm run format before committing (CI enforces this)

Don't:

  • Add new dependencies without clear need
  • Create god components or monolithic files
  • Hard-code colors—use CSS variables (var(--color-*))
  • Skip type annotations on function parameters
  • Commit without running npm run format first

Git Workflow

  • Create a topic branch for every task; never commit or push directly to main
  • Make small, frequent conventional commits as you go (e.g., feat:, fix:, refactor:)
  • Push to your remote branch after every commit to keep it in sync
  • Land changes on main by merging GitHub PRs with conventional-commit titles (deploys trigger automatically from these merges)
  • If multiple PRs need to land together, open an integration branch PR; do not locally merge into main
  • Treat main as protected: force-pushes and history rewrites require explicit user approval

Read the full file on GitHub · 128 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. 4d ago First seen · 128 lines · 3,656 tokens per session scan A 01a37e976c9d

Subscribe to this mod's changes

personal-site AGENTS.md is an instructions file published in the GitHub repository mldangelo/personal-site (1,683 stars, last pushed 15d ago), licensed MIT. It adds 3,656 tokens to every session, about $0.0183 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.