audit-my-assumptions

audit-my-assumptions is a skill for Claude Code from debabsah/analytics-office. It costs 249 tokens per session (3,610 once invoked), scanned A, original, MIT.

A review process for the assumptions behind inherited data sources, code, queries, reports, or spreadsheets. It examines what must be true before their results are reused or presented.

In plain words
What is it for?
Use it before rebuilding a report, deriving a metric, extending an old workbook, changing a data source, or presenting a number.
Why use it?
It exposes hidden assumptions that could make later analysis or reporting wrong, while there is still time to verify them.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions AGENTS.md.

Part of the analytics-office plugin — 19 skills shipped together

Good fit Use it before rebuilding a report, deriving a metric, extending an old workbook, changing a data source, or presenting a number.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/debabsah/analytics-office/audit-my-assumptions
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 debabsah/analytics-office --skill audit-my-assumptions
Clone the repo
git clone --depth 1 https://github.com/debabsah/analytics-office

Made for: Claude Code.

Or install analytics-office, the plugin that ships this one along with the rest of its 19 skills.

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 audit-my-assumptions

README.md
[![agentmods](https://agentmods.dev/badge/skills/debabsah/analytics-office/audit-my-assumptions/github.svg)](https://agentmods.dev/skills/debabsah/analytics-office/audit-my-assumptions)
Your own site
<a href="https://agentmods.dev/skills/debabsah/analytics-office/audit-my-assumptions"><img src="https://agentmods.dev/badge/skills/debabsah/analytics-office/audit-my-assumptions/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 audit-my-assumptions

Your own site · 80×15
<a href="https://agentmods.dev/skills/debabsah/analytics-office/audit-my-assumptions"><img src="https://agentmods.dev/badge/skills/debabsah/analytics-office/audit-my-assumptions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 249 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,610 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.
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 $0.00249 $0.03610
Opus 5 $0.00125 $0.01805
Sonnet 5 $0.00050 $0.00722
Haiku 4.5 $0.00025 $0.00361

Measured 10d ago against content hash 68ad4f2c6d80, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

audit-my-assumptions 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 10d 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/audit-my-assumptions/SKILL.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

audit-my-assumptions

The colleague who makes you write down what you're taking for granted before you build a quarter of work on top of it — then tries to break the load-bearing ones while it's still cheap.

When to use

Fire FIRST — before you build/derive on it AND before you present/stand behind it. Fire when about to build or derive on top of something you did not author and fully verify, OR when about to present a number (of any provenance — inherited, self-derived, or long-trusted) and you want its premises checked before the room: rebuild a report from inherited stored procs, derive a new metric from an existing query, stack more years onto an old workbook, turn a proc's output into a deck, re-point a model at a new source. The question is "what am I silently assuming, and which of those assumptions would poison everything if it's wrong?" — asked before the build, not after a stakeholder squints at the output. Do NOT fire when a number is already in hand and known wrong (that's triage-my-number, downstream), to pin what a metric should mean (kpi-contract), to review one code object against a contract (review-my-query), or to audit a whole accreted knowledge base (kb-reconcile). This runs at the front of the work, on the inputs.

This vs. its neighbors. The gate is no symptom yet: you're about to build/derive on, or present/stand behind, a number whose load-bearing premises are unexamined (any provenance — inherited, self-derived, or long-trusted) and you want them falsified first. Route elsewhere when the case differs — a number already known wrongtriage-my-number (diagnose the whole failure surface); a query's code logic suspect while the definition is trusted → review-my-query; your whole accreted knowledge base, not one source → kb-reconcile. Among the present-moment trio — premises → here · phrasing → brief-my-findings · pushback → defend-my-number — fire here for "what am I assuming under this number?" (it can be clean and still wrong); for "how do I write this up?" use brief-my-findings; for "how do I hold up under live challenge?" use defend-my-number.

Read the full file on GitHub · 77 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 77 lines · 0 tokens per session scan A 68ad4f2c6d80

Subscribe to this mod's changes

audit-my-assumptions is a skill published in the GitHub repository debabsah/analytics-office (9 stars, last pushed 3mo ago), licensed MIT. It adds 249 tokens to every session and 3,610 once invoked, about $0.0012 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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