confidence

confidence is a skill for Claude Code, Codex from mthines/agent-skills. It costs 103 tokens per session (3,871 once invoked), scanned A, original, MIT.

A confidence review that estimates whether the current plan, code, or technical analysis fully meets its stated requirement.

In plain words
What is it for?
Use it to validate implementation plans, review completed code, or assess a root-cause investigation, refactoring explanation, or diagnosis.
Why use it?
It makes uncertainty visible before execution, release, or a proposed fix is accepted. Plan reviews combine an assessment with fixed rule checks, and a failed rule limits the result.

Skill for Claude CodeCodex

Part of the mthines-agent-skills plugin — 54 skills, 4 agents shipped together

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/mthines/agent-skills/confidence
Any agent
npx skills add mthines/agent-skills --skill confidence
Clone the repo
git clone --depth 1 https://github.com/mthines/agent-skills

Made for: Claude Code, Codex.

Or install mthines-agent-skills, the plugin that ships this one along with the rest of its 54 skills, 4 agents.

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 confidence

README.md
[![agentmods](https://agentmods.dev/badge/skills/mthines/agent-skills/confidence.svg)](https://agentmods.dev/skills/mthines/agent-skills/confidence)
Your own site
<a href="https://agentmods.dev/skills/mthines/agent-skills/confidence"><img src="https://agentmods.dev/badge/skills/mthines/agent-skills/confidence.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,871 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00103 $0.03871
Opus 5 $0.00051 $0.01936
Sonnet 5 $0.00021 $0.00774
Haiku 4.5 $0.00010 $0.00387

Measured 5d ago against content hash 1b3afa022211, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

confidence 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.

skills/quality/confidence/SKILL.md · 238 lines

How it starts

The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Confidence Assessment

Rate your confidence that the current work fully solves the stated requirement.

Multi-signal evaluation. A single LLM-confidence number is unreliable as a stand-alone gate (token probability ≠ correctness). This skill combines the LLM's dimensional scoring with deterministic rule checks the agent must run alongside. The final score is gated on BOTH passing.

Contents


Mode Detection

Check the arguments: $ARGUMENTS

Argument Default Validates When to use
plan Implementation plan completeness After Phase 1 planning, before autonomous execution
code yes Code implementation correctness After writing code, before PR
analysis Analysis accuracy (root cause, refactor rationale, or skill gap) During investigation, before proposing a fix, refactor, or skill-source diff
bug-analysis Deprecated alias for analysis — behaves identically Backwards-compatible; emit a one-line deprecation note in the report header

Read the full file on GitHub · 238 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 · 238 lines · 103 tokens per session scan A 1b3afa022211

Subscribe to this mod's changes

confidence is a skill published in the GitHub repository mthines/agent-skills (12 stars, last pushed today), licensed MIT. It adds 103 tokens to every session and 3,871 once invoked, about $0.0005 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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