composio-webapp-testing

composio-webapp-testing is a skill for Claude Code, Codex from KornLabs/truss. It costs 0 tokens per session (914 once invoked), scanned A, original, no licence file.

A guide for testing web applications with Composio, including how to choose a testing approach, use a server-starting helper, inspect the app before acting, and avoid common mistakes.

In plain words
What is it for?
Use it when testing web application flows, especially when the app must be started with a helper script and examined before actions are performed.
Why use it?
It provides a repeatable testing process for deciding how to interact with a running web app and for avoiding errors during setup or exploration.

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/kornlabs/truss/composio-webapp-testing
Any agent
npx skills add KornLabs/truss --skill composio-webapp-testing
Clone the repo
git clone --depth 1 https://github.com/KornLabs/truss

Made for: Claude Code, Codex.

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 composio-webapp-testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/kornlabs/truss/composio-webapp-testing.svg)](https://agentmods.dev/skills/kornlabs/truss/composio-webapp-testing)
Your own site
<a href="https://agentmods.dev/skills/kornlabs/truss/composio-webapp-testing"><img src="https://agentmods.dev/badge/skills/kornlabs/truss/composio-webapp-testing.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 914 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00000 $0.00914
Opus 5 $0.00000 $0.00457
Sonnet 5 $0.00000 $0.00183
Haiku 4.5 $0.00000 $0.00091

Measured 4d ago against content hash 296d416d615f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

composio-webapp-testing 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.

.truss/baseline/.claude/skills/composio-webapp-testing/SKILL.md · 98 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 · 98 lines · 0 tokens per session scan A 296d416d615f

Subscribe to this mod's changes

composio-webapp-testing is a skill published in the GitHub repository KornLabs/truss (2 stars, last pushed yesterday), with no licence file. It costs nothing until one of its globs matches a file; then it loads 914 tokens. 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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