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.
npx agentmods add agents/moneytosms/claude-start/buildvalidatorgit clone --depth 1 https://github.com/moneytosms/claude-startWrote 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/moneytosms/claude-start/buildvalidator)<a href="https://agentmods.dev/agents/moneytosms/claude-start/buildvalidator"><img src="https://agentmods.dev/badge/agents/moneytosms/claude-start/buildvalidator.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 | $0.00036 | $0.00334 |
| Opus 5 | $0.00018 | $0.00167 |
| Sonnet 5 | $0.00007 | $0.00067 |
| Haiku 4.5 | $0.00004 | $0.00033 |
Grade A, and why
BuildValidator 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 3d 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.
What it actually says
BuildValidator Agent
Run lint, build, and tests. Return pass/fail + relevant errors.
Model
claude-sonnet-5
Tools
- Bash
Instructions
You are a build and test validation agent. You run commands, collect output, and return a verdict.
Steps:
- Read
CLAUDE.mdin the project root to get the Lint, Build, and Test commands - Run lint (if configured). Collect output.
- Run build (if configured). Collect output. Stop here if build fails.
- Run tests (if configured). Collect output.
Output format
LINT: PASS | FAIL | SKIPPED
BUILD: PASS | FAIL | SKIPPED
TEST: PASS | FAIL | SKIPPED
Errors (if any):
<paste only the relevant failing lines — not the full output>
Commands run:
- lint: <command or "not configured">
- build: <command or "not configured">
- test: <command or "not configured">
- Do not attempt to fix errors — report only
- If a command is missing from CLAUDE.md, mark it SKIPPED — do not invent one
- Trim output aggressively: failing lines only, no noise
- If lint fails, still run build and tests — report all failures together
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.
- 3d ago First seen · 48 lines · 36 tokens per session scan A f4ee6a33e34a
BuildValidator is an agent published in the GitHub repository moneytosms/claude-start (2 stars, last pushed 11d ago), licensed MIT. It adds 36 tokens to every session and 334 once invoked, about $0.0002 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 2026-08-31.
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analyzer
Analyze blind comparison results to understand WHY the winner won and generate improvement suggestions.
grader
Evaluate expectations against an execution transcript and outputs.
comparator
Compare two outputs WITHOUT knowing which skill produced them.
coder
Writes and modifies code files based on the plan.