reliability

reliability is a skill for Claude Code, Codex from ai-analyst-lab/ai-analyst-plus. It costs 121 tokens per session (1,253 once invoked), scanned A, a copy of reliability, MIT.

A repeatability check for answers to analytics questions. It runs the same question independently several times and reports which parts stay the same and which vary.

In plain words
What is it for?
Use it to test whether a metric or analysis produces consistent results across independent runs, such as checking a retention-rate answer.
Why use it?
It reveals when an answer depends on an unclear question or inconsistent interpretation, though a repeated answer can still be wrong.

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/ai-analyst-lab/ai-analyst-plus/reliability
Any agent
npx skills add ai-analyst-lab/ai-analyst-plus --skill reliability
Clone the repo
git clone --depth 1 https://github.com/ai-analyst-lab/ai-analyst-plus

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 reliability

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai-analyst-lab/ai-analyst-plus/reliability.svg)](https://agentmods.dev/skills/ai-analyst-lab/ai-analyst-plus/reliability)
Your own site
<a href="https://agentmods.dev/skills/ai-analyst-lab/ai-analyst-plus/reliability"><img src="https://agentmods.dev/badge/skills/ai-analyst-lab/ai-analyst-plus/reliability.svg" alt="Measured on agentmods" height="20"></a>
Per session 121 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,253 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 86% copy Near-identical to another mod 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 $0.00121 $0.01253
Opus 5 $0.00060 $0.00626
Sonnet 5 $0.00024 $0.00251
Haiku 4.5 $0.00012 $0.00125

Measured 5d ago against content hash 903f795e4f4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

reliability 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 5d 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.

Origin

This is a copy

86% identical to reliability — 40 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/reliability/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Reliability check

Purpose

Run one analytics question several independent times and report whether the answer is stable (every run agrees) or drifting (runs disagree because the question is under-defined). Stability is necessary, not sufficient: a wrong query is perfectly stable. This check needs no ground truth.

Invocation

/reliability "<the question>" [N] — default N = 5. Example: /reliability "What's our retention rate?"

How to run it

Step 1 — fire N independent runs

Launch N sub-agents in parallel with the Task/Agent tool (N defaults to 5). They must be genuinely independent: each gets a fresh context and sees ONLY the question, never the other runs' answers. Give each sub-agent exactly this brief:

You are answering one analytics question against the active dataset. Load the normal session context first (knowledge-bootstrap: read .knowledge/active.yaml, then the active dataset's schema.md, quirks.md, and manifest from the local datasets dir). For the metric dictionary and semantic context, first resolve the context dir with from helpers.context_sync import resolve_context_dir (helpers/context_sync.py) and read metrics/index.yaml and semantic/ from the RESOLVED dir, not from the local copy. Do not read .knowledge/reliability/ history before answering. If the metric you're asked about is defined in the dictionary, use that definition exactly. If it is not, decide for yourself how best to define and measure it. Query the real data with the repo connection (from helpers.connection_manager import ConnectionManager). Answer the question: "". Then return ONLY this block: headline: <the single number you'd report> measured: <one line: numerator, denominator, grain, window, any filter> definition_source: <"metric dictionary" if you used a defined metric, else "my own choice">

Do not let the runs share state. Run them concurrently.

Step 2 — record the runs (tracked + auditable)

Write the N results to a timestamped run directory so every check leaves an audit trail: .knowledge/reliability/<UTC-timestamp>-<question-slug>/runs.json, shaped as {"question": "<the question>", "runs": [{"run":1,"headline":"...","measured":"...","definition_source":"..."}, ...]}.

Read the full file on GitHub · 82 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. 5d ago First seen · 82 lines · 0 tokens per session scan A 903f795e4f4f

Subscribe to this mod's changes

reliability is a skill published in the GitHub repository ai-analyst-lab/ai-analyst-plus (19 stars, last pushed 1mo ago), licensed MIT. It adds 121 tokens to every session and 1,253 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to reliability, differing in 40 lines, and is treated as a copy.

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