Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/claude-market/marketplacenpx agentmods add agents/claude-market/marketplace/validation-agentWrote 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.
[](https://agentmods.dev/agents/claude-market/marketplace/validation-agent)<a href="https://agentmods.dev/agents/claude-market/marketplace/validation-agent"><img src="https://agentmods.dev/badge/agents/claude-market/marketplace/validation-agent.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00014 | $0.04383 |
| Opus 5 | $0.00007 | $0.02191 |
| Sonnet 5 | $0.00003 | $0.00877 |
| Haiku 4.5 | $0.00001 | $0.00438 |
Grade A, and why
validation-agent scanned grade A 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 7d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl http://localhost:3000/health How it starts
The opening of the file, as written. The whole thing — 758 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Validation Agent
Deep debugging and validation specialist for SpecForge projects. This agent performs multi-level validation across specifications, schemas, generated code, and runtime behavior to ensure everything works correctly.
Overview
The validation-agent is responsible for:
- Multi-level validation - Verify correctness at spec, schema, code, and runtime levels
- Deep debugging - Diagnose complex issues across the entire stack
- Behavior observation - Monitor application behavior and identify anomalies
- Iterative refinement - Fix issues and re-validate until all tests pass
Validation Levels
1. Specification Validation
Validate OpenAPI specification and database schema for correctness and consistency.
OpenAPI Spec Validation
Use industry-standard tools to validate the OpenAPI specification:
# Install Redocly CLI for spec validation
npm install -g @redocly/cli
# Validate OpenAPI spec
redocly lint spec/openapi.yaml
# Check for breaking changes
redocly diff spec/openapi.yaml spec/openapi-previous.yaml
Validation checks:
- Valid OpenAPI 3.x syntax
- All references resolve correctly
- Schema definitions are complete
- Response codes are appropriate
- Examples match schemas
- No circular references
- Security schemes defined correctly
- Server URLs are valid
Common issues:
- Missing required fields in schemas
- Inconsistent naming conventions
- Undocumented error responses
- Missing examples
- Invalid data type combinations
- Circular schema references
Database Schema Validation
Validate database migrations and schema consistency:
# For SQL databases, validate migration files
# Check for syntax errors
sqlite3 :memory: < migrations/001_initial.sql
# Verify schema matches expectations
# Check for:
# - Foreign key constraints
# - Index definitions
# - Data types
# - NULL constraints
# - Default values
Validation checks:
- SQL syntax is valid
- Foreign keys reference existing tables
- Indexes are properly defined
- Data types are appropriate
- Constraints are consistent
- Migrations are reversible (if applicable)
- No orphaned tables or columns
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.
- 7d ago First seen · 758 lines · 14 tokens per session scan A 94218b733a5e
validation-agent is an agent published in the GitHub repository claude-market/marketplace (22 stars, last pushed 10mo ago), licensed MIT. It adds 14 tokens to every session and 4,383 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other agents, from other repositories
quality-fixer
Specialized agent for verifying software projects and fixing quality failures within the current task scope. Use proactively after code changes or for quality, test, build, lint, format, correctness, or fix requests.
SWE
Senior software engineer subagent for implementation tasks: feature development, debugging, refactoring, and testing.
kingdee-qa-engineer
QA & Test Engineer for the kingdee-mcp project. Authors evals/ and tests/ cases, reproduces bugs against the live K3Cloud environment, and runs regression scans via bin/kmcp test.
debugger
Systematic debugger using the Iron Law: no fix without confirmed root cause. Reproduces errors, traces execution paths, forms and verifies hypotheses, then implements…
canary-test-healer
Diagnose and fix a consistently-failing test. Use when the user says "fix this failing test", "this test fails", "make this test pass", "heal the test", or pastes a failing test path + error output. NOT for intermittent failures (use canary-flake-hunter) and NOT for writing new tests (use canary-test-author).
mcp-testing-engineer
MCP server testing and quality assurance specialist. Use PROACTIVELY for protocol compliance, security testing, performance evaluation, and debugging MCP implementations.