validation

validation is a skill for Claude Code from honeydew-ai/honeydew-ai-coding-agents-plugins. It costs 35 tokens per session (2,308 once invoked), scanned A, original, Apache-2.0.

A guide for checking Honeydew metrics, attributes, entities, and domains after they are created or changed. It checks whether they run, return useful values, and remain consistent with related objects.

In plain words
What is it for?
It helps execute the changed object, inspect its results, check business values and related calculations, and report tool or permission errors.
Why use it?
It catches broken definitions, empty results, unreasonable values, and mismatches before others rely on them.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the honeydew-ai plugin — 13 skills, 1 hook, 1 MCP server shipped together

Good fit It helps execute the changed object, inspect its results, check business values and related calculations, and report tool or permission errors.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation
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.

Any agent
npx skills add honeydew-ai/honeydew-ai-coding-agents-plugins --skill validation
Clone the repo
git clone --depth 1 https://github.com/honeydew-ai/honeydew-ai-coding-agents-plugins

Made for: Claude Code.

Or install honeydew-ai, the plugin that ships this one along with the rest of its 13 skills, 1 hook, 1 MCP server.

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 validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation/github.svg)](https://agentmods.dev/skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation)
Your own site
<a href="https://agentmods.dev/skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation"><img src="https://agentmods.dev/badge/skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation"><img src="https://agentmods.dev/badge/skills/honeydew-ai/honeydew-ai-coding-agents-plugins/validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,308 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Prompt Injection · line 219
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
How audits are shown
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 5.1 $0.00035 $0.02308
Opus 5 $0.00017 $0.01154
Sonnet 5 $0.00007 $0.00462
Haiku 4.5 $0.00003 $0.00231

Measured 9d ago against content hash 998305b53e39, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

validation 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 9d 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.

skills/validation/SKILL.md · 250 lines

How it starts

The opening of the file, as written. The whole thing — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Overview

This skill is MANDATORY after creating or modifying any Honeydew object.

Validation ensures:

  • The object compiles and executes without errors
  • Results are returned (not NULL or empty)
  • Values make business sense
  • Related objects are consistent with each other

Validation by Object Type

Metrics

Step 1: Execute the metric

Call get_data_from_fields with:

  • metrics: ["<entity>.<metric_name>"]

If the tool call fails (API error, permission denied, timeout), report the error to the user before proceeding. Do not confuse a tool error with suspicious data.

Step 2: Sanity checks

Check What to Look For Action if Failed
Returns data Not NULL, not empty Check SQL syntax, entity references
Magnitude Reasonable for business context Verify calculation logic
Sign Positive for revenue/counts (usually) Check for inverted logic
Related metrics Parts sum to whole Query related metrics together and verify consistency
Ratios Between 0-100% (usually) Check numerator and denominator metrics independently

Step 3: Cross-validation

If the new metric is a filtered subset of an existing metric, or a ratio of existing metrics, query them together to verify consistency:

  • For filtered metrics: query the filtered metric alongside the unfiltered total — the filtered value should be less than or equal to the total.
  • For ratio/derived metrics: query the numerator and denominator independently to confirm they return sensible values before checking the ratio.

Call get_data_from_fields with both metrics:

  • metrics: ["<entity>.<filtered_metric>", "<entity>.<total_metric>"]

Read the full file on GitHub · 250 lines

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. 9d ago First seen · 250 lines · 35 tokens per session scan A 998305b53e39

Subscribe to this mod's changes

validation is a skill published in the GitHub repository honeydew-ai/honeydew-ai-coding-agents-plugins (39 stars, last pushed 9d ago), licensed Apache-2.0. It adds 35 tokens to every session and 2,308 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 2026-08-30.