aidd-dev:02:assert

A validation skill for checking whether an implementation works as intended, follows architectural rules, and behaves correctly in a browser. It uses repeated checks rather than a single assertion.

In plain words
What is it for?
Use it to verify general features, check conformance to project structure, or validate a web interface in a browser.
Why use it?
It helps find incorrect behavior, architecture violations, and frontend problems before the work is considered complete.

Skill for Claude CodeCodex

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 skills/ai-driven-dev/framework/02-assert
Any agent
npx skills add ai-driven-dev/framework --skill 02-assert
Clone the repo
git clone --depth 1 https://github.com/ai-driven-dev/framework

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 92 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00026 $0.00092
Opus 5 $0.00013 $0.00046
Sonnet 5 $0.00005 $0.00018
Haiku 4.5 $0.00003 $0.00009

Measured 2d ago against content hash c32f74b1d608, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

aidd-dev:02:assert 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.

cli/tests/fixtures/framework-real/plugins/aidd-dev/skills/02-assert/SKILL.md · 17 lines

What it actually says

Skill: assert

Validates correctness of implementations through iterative assertion loops, architecture checks, and browser-based frontend verification.

Actions

@actions/01-assert.md
@actions/02-assert-architecture.md
@actions/03-assert-frontend.md
Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 17 lines · 26 tokens per session scan A c32f74b1d608

Subscribe to this mod's changes

aidd-dev:02:assert is a skill published in the GitHub repository ai-driven-dev/framework (445 stars, last pushed 2d ago), licensed MIT. It adds 26 tokens to every session and 92 once invoked, about $0.0001 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.

Related

Other skills, from other repositories

frontend-design

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI).…

bytedance/deer-flow · 77 tokens

tmux

Remote-control tmux sessions for interactive CLIs by sending keystrokes and scraping pane output.

the-open-agent/openagent · 22 tokens

kb-builder

Build an Obsidian-compatible knowledge base from public web sources using the TinyFish CLI. Use this skill when a user wants a builder-grade markdown knowledge base on a technical topic, asks for a structured research vault, or wants a topic compiled from live public sources into interlinked markdown files. Supports…

tinyfish-io/tinyfish-cookbook · 158 tokens

tinyfish-social-listening

Monitor brand mentions, sentiment, and industry chatter across the web using TinyFish Search and Fetch. Use when a user asks to track what people are saying about a brand, product, or topic, run social listening, or get a pulse on public perception. If the user already named the target, proceed directly. Default time…

tinyfish-io/tinyfish-cookbook · 86 tokens

dev-pain-finder

Scrape real developer pain points for any keyword, technology, or problem space from Reddit, Hacker News, dev.to, and GitHub Discussions simultaneously — then group complaints by theme, score them by frequency and upvote weight, and return a ranked opportunity map showing where developer frustration is high and…

tinyfish-io/tinyfish-cookbook · 160 tokens

dep-security

Check every dependency in a package.json against live CVE databases and security advisories in real time — specifically targeting vulnerabilities disclosed in the last 48 hours, the window that Snyk, Dependabot, and npm audit miss. Use this skill whenever a user mentions checking dependencies for vulnerabilities…

tinyfish-io/tinyfish-cookbook · 159 tokens