solid-js-best-practices: Instructions file for Codex

AGENTS.md

solid-js-best-practices AGENTS.md is an instructions file for Codex, OpenCode from richardcarls/solid-js-best-practices. It costs 619 tokens per session, scanned A, original, MIT.

A contributor guide for a Solid.js best-practices skill, with instructions for its main guide, rule files, categories, and supporting documentation.

In plain words
What is it for?
Use it when maintaining the skill or adding rules about Solid.js reactivity, components, control flow, state, DOM references, performance, accessibility, testing, or web components.
Why use it?
It helps contributors keep the skill organized and place new guidance in the appropriate category.

Instructions file for CodexOpenCode

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

This is richardcarls/solid-js-best-practices's own configuration. It tells Codex and OpenCode how to work on solid-js-best-practices 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 solid-js-best-practices configures →

Reuse

Borrowing it

Nothing to install: this file belongs to richardcarls/solid-js-best-practices. 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/richardcarls/solid-js-best-practices/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/richardcarls/solid-js-best-practices

Made for: Codex, OpenCode.

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README.md
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Per session 619 This file is loaded in full into every session.
When invoked 619 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 $0.00619 $0.00619
Opus 5.5 $0.00248 $0.00248
Sonnet 5.5 $0.00124 $0.00124
Haiku 4.5 $0.00062 $0.00062

Measured 18d ago against content hash b706906138ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

solid-js-best-practices 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 18d 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 · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Solid.js Best Practices - Contributor Guide

For AI agents: The primary skill content is in SKILL.md, which includes the rule index and task-based rule selection; the rule files carry examples and React comparisons.

This document is for contributors working on the skill itself.

Skill File Structure

solid-js-best-practices/
├── SKILL.md           # Primary skill file (start here)
├── AGENTS.md          # This file - contributor guidance
├── README.md          # Human documentation
├── CHANGELOG.md       # Version history
├── docs/              # Version audit plan
├── scripts/           # Structural checks
└── rules/             # Individual rule files
    ├── 1-*.md         # Reactivity rules
    ├── 2-*.md         # Component rules
    ├── 3-*.md         # Control flow rules
    ├── 4-*.md         # State management rules
    ├── 5-*.md         # Refs & DOM rules
    ├── 6-*.md         # Performance rules
    ├── 7-*.md         # Accessibility rules
    ├── 8-*.md         # Testing rules
    └── 9-*.md         # Web component integration rules

Rule Categories

  • Category 1: Reactivity
  • Category 2: Components
  • Category 3: Control Flow
  • Category 4: State Management
  • Category 5: Refs & DOM
  • Category 6: Performance
  • Category 7: Accessibility
  • Category 8: Testing
  • Category 9: Web Component Integration

Rule File Naming

Files follow the pattern [category]-[number]-[hyphenated-topic].md.

Rule File Structure

Each rule file should contain:

  1. YAML frontmatter with title, category, priority, and version_basis; add a description when useful.
  2. Problem section explaining what goes wrong.
  3. Incorrect code examples.
  4. Correct code examples.
  5. Why-it-matters guidance.
  6. Related rules with cross-references.

Examples should stay generic and publishable. Use hypothetical <wc-*> custom elements or native platform elements, not project-local components.

version_basis lists Solid majors that informed the rule. The current examples came from 1.x work. Defer the Solid 2.x audit until an official release is available. Do not mark a rule as based on 2.x merely because its principle appears version-neutral; check the example's imports, JSX syntax, and runtime behavior against the targeted 2.x release first. Keep existing rule IDs and links stable when adding version-specific guidance.

Read the full file on GitHub · 68 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. 18d ago Changed · +13 lines · +159 tokens per session b706906138ec
  2. 2mo ago First seen · 55 lines · 460 tokens per session scan A 523aec908eae

Subscribe to this mod's changes

solid-js-best-practices AGENTS.md is an instructions file published in the GitHub repository richardcarls/solid-js-best-practices (2 stars, last pushed 14d ago), licensed MIT. It adds 619 tokens to every session, about $0.0025 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.

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