validation-gates

A testing and validation agent that checks implemented code, runs tests, and works through failures until the checks pass.

In plain words
What is it for?
Use it after coding work to test features, verify requirements, and fix test failures.
Why use it?
It helps catch incorrect or incomplete changes after a feature has been implemented.

Agent for Claude Code

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 agents/eshkook/basic-mcp/validation-gates
Clone the repo
git clone --depth 1 https://github.com/eshkook/basic-mcp

Made for: Claude Code.

Per session 71 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,016 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00071 $0.01016
Opus 5 $0.00036 $0.00508
Sonnet 5 $0.00014 $0.00203
Haiku 4.5 $0.00007 $0.00102

Measured yesterday against content hash 8d2203c07c06, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

validation-gates scanned grade B with 1 finding 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 yesterday.

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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

- [ ] Build succeeds without warnings
.claude/agents/validation-gates.md · 133 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. yesterday First seen · 133 lines · 71 tokens per session scan B 8d2203c07c06

Subscribe to this mod's changes

validation-gates is an agent published in the GitHub repository eshkook/basic-mcp (0 stars, last pushed 3mo ago), with no licence file. It adds 71 tokens to every session and 1,016 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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