Effort Calibration

Effort Calibration is a skill for Claude Code from ralfyishere/rules-with-receipts. It costs 116 tokens per session (1,264 once invoked), scanned A, original, MIT.

A decision guide for choosing how much investigation and care a task requires, from low to critical effort.

In plain words
What is it for?
Classifying tasks by complexity and stakes, then using that level to decide whether to verify information, investigate further, or proceed quickly.
Why use it?
It helps balance speed against the risk of giving a wrong answer or making a costly change, especially for production, legal, financial, or irreversible work.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Classifying tasks by complexity and stakes, then using that level to decide whether to verify information, investigate further, or proceed quickly.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ralfyishere/rules-with-receipts/effort-calibration
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 ralfyishere/rules-with-receipts --skill effort-calibration
Clone the repo
git clone --depth 1 https://github.com/ralfyishere/rules-with-receipts

Made for: Claude Code.

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 Effort Calibration

README.md
[![agentmods](https://agentmods.dev/badge/skills/ralfyishere/rules-with-receipts/effort-calibration/github.svg)](https://agentmods.dev/skills/ralfyishere/rules-with-receipts/effort-calibration)
Your own site
<a href="https://agentmods.dev/skills/ralfyishere/rules-with-receipts/effort-calibration"><img src="https://agentmods.dev/badge/skills/ralfyishere/rules-with-receipts/effort-calibration/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 Effort Calibration

Your own site · 80×15
<a href="https://agentmods.dev/skills/ralfyishere/rules-with-receipts/effort-calibration"><img src="https://agentmods.dev/badge/skills/ralfyishere/rules-with-receipts/effort-calibration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,264 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 $0.00116 $0.01264
Opus 5.5 $0.00046 $0.00506
Sonnet 5.5 $0.00023 $0.00253
Haiku 4.5 $0.00012 $0.00126

Measured 1mo ago against content hash 17db72cd9aba, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Effort Calibration 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 1mo 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.

.claude/skills/effort-calibration/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.

Effort Calibration

Purpose

Spend effort where it buys outcome quality, and nowhere else. Under-effort produces confident wrong answers on hard problems; over-effort produces ceremony, latency, and bloated output on easy ones. Both are calibration failures. The tier decision takes seconds and governs everything downstream.

When to use this skill

  • At the start of every task (the decision is cheap; skipping it is not).
  • Mid-task, when stakes shift: an action turns out to be irreversible, an assumption breaks, scope grows, or the user signals urgency or importance.
  • When torn between "just answer" and "go verify" — that tension is the trigger.

When NOT to use this skill

  • Don't loop on it. Pick a tier, state nothing (Low/Medium) or one line (High/Critical), and move. Re-calibrate only on new information.

Operating procedure

Step 1 — Score two axes:

  • Complexity: How many steps? How familiar? How much unknown?
  • Stakes: What happens if this is wrong? Reversible or not? Who sees it?

Step 2 — Pick the tier (stakes win ties):

Tier Typical signals Behavior
Low Factual question, one-step edit, reversible, user wants speed Answer directly. No plan. Verify only if a claim is load-bearing and cheap to check. Short output.
Medium Multi-step but familiar; moderate blast radius; standard requests Micro-plan (one paragraph). Verify key claims against live state. One quick self-review pass before finalizing.
High Complex or unfamiliar; multi-file/multi-part; wrong answer costs real rework; user says "important", "production", "customer-facing" Full plan-gate. live-state-truth for all state claims. adversarial-verify before presenting. Label remaining uncertainty.
Critical Irreversible actions (deletes, sends, deploys, payments); legal/financial/medical territory; public-facing artifacts Everything in High, plus: explicit assumption list, confirm with the user before the irreversible step, state confidence and what wasn't verified. Slow is correct here.

Read the full file on GitHub · 77 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. 1mo ago First seen · 77 lines · 0 tokens per session scan A 17db72cd9aba

Subscribe to this mod's changes

Effort Calibration is a skill published in the GitHub repository ralfyishere/rules-with-receipts (2 stars, last pushed 3mo ago), licensed MIT. It adds 116 tokens to every session and 1,264 once invoked, about $0.0005 per session on Opus 5.5. 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.