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Agent skill

Thoughtproof Reasoning Check

by moonpay in moonpay/skills

Verify whether an AI agent's decision is well-reasoned before executing.

MITAuto-check passed

Install Thoughtproof Reasoning Check

skills CLI
$ npx skills add moonpay/skills --skill thoughtproof-reasoning-check -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install moonpay/skills thoughtproof-reasoning-check --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/moonpay/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/thoughtproof-reasoning-check .claude/skills/thoughtproof-reasoning-check && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
thoughtproof-reasoning-check
GitHub stars
113
Token cost
~833 tokens
SKILL.md length
325 words
Files
1
Skills in repo
39
Repo updated
First seen
Licence
MIT

At a glance

Verify whether an AI agent's decision is well-reasoned before executing.

  • Works in 5 steps: User says: "Swap $5K USDC for ETH… → Agent prepares the MoonPay swap request. → Before calling moonpay-swap-tokens, the… → …
  • SKILL.md covers Goal, Prerequisites, Usage and Response, plus 4 more sections
  • Calls curl; reaches api.thoughtproof.ai

What it does

Thoughtproof Reasoning Check is an agent skill from moonpay/skills. Verify whether an AI agent's decision is well-reasoned before executing. Adversarial multi-model critique (Claude, Grok, DeepSeek) returns ALLOW, BLOCK, or UNCERTAIN with confidence score. Use before any high-value swap, trade, or autonomous action.

Its SKILL.md is about 830 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with DeepSeek. The repository describes itself as: Skills for AI agents to move money — on-ramps, swaps, wallets, deposits, and more via the MoonPay CLI. The licence is MIT.

Example prompts

  • “/thoughtproof-reasoning-check”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. User says: "Swap $5K USDC for ETH because CT is bullish."
  2. Agent prepares the MoonPay swap request.
  3. Before calling moonpay-swap-tokens, the agent sends the reasoning to ThoughtProof.
  4. ThoughtProof returns
  5. If verification passes, the MoonPay skill executes the swap.

What it can do on your machine

Read from SKILL.md and the folder at commit aa672ab. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • curl

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • api.thoughtproof.ai

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Thoughtproof Reasoning Check loads about 833 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 325 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~70
When it runs · the whole SKILL.md, loaded when a task matches
~833

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from moonpay/skills at commit aa672ab, republished under its MIT licence (© moonpay). 325 words, ~833 tokens.

Download SKILL.mdSave it as .claude/skills/thoughtproof-reasoning-check/SKILL.md (or your agent's skills folder).
name
thoughtproof-reasoning-check
description
Verify whether an AI agent's decision is well-reasoned before executing. Adversarial multi-model critique (Claude, Grok, DeepSeek) returns ALLOW, BLOCK, or UNCERTAIN with confidence score. Use before any high-value swap, trade, or autonomous action.
tags
verification, reasoning, agents, defi, security

ThoughtProof Reasoning Check

Goal

Before executing a trade or autonomous action, verify that the agent's reasoning is sound. ThoughtProof runs adversarial multi-model critique and returns a signed verdict: ALLOW, BLOCK, or UNCERTAIN.

Prerequisites

  • A funded wallet on Base (for x402 payment): mp wallet create

Usage

Check reasoning quality before a trade:

bash
curl -X POST https://api.thoughtproof.ai/v1/check \
  -H "Content-Type: application/json" \
  -d '{"claim": "Swap $2K USDC to ETH. ETH at $2180, 6% below 30d MA, RSI 34.", "stakeLevel": "medium", "domain": "financial"}'

First call returns 402 with x402 payment details (amount, recipient, asset on Base). Pay, then retry the same request to receive the verdict.

Response

json
{
  "verdict": "ALLOW",
  "confidence": 0.82,
  "objections": [],
  "durationMs": 55000
}

Decision logic

VerdictMeaningAction
ALLOWReasoning passed verificationProceed
BLOCKMaterial reasoning defects or unacceptable riskDo not execute
UNCERTAINSafe escalation state — insufficient clean evidence to justify ALLOW or BLOCKGather more context or require review

Pricing

ThoughtProof pricing is stake-based.

Stake LevelStandardLiteUse case
low$0.01$0.005Routine low-value actions
medium$0.02$0.01Standard trades and service payments
high$0.05—Large or sensitive actions
critical$0.10—High-value or highly risky actions

Notes:

  • lite is only available for low and medium stake.
  • high and critical always execute on the standard tier.
  • Billing follows the executed tier, not the requested tier.

Example workflow

MoonPay + ThoughtProof: payment layer + verification layer

MoonPay handles the payment execution. ThoughtProof verifies whether the decision to pay is well-reasoned before settlement.

Example:

  1. User says: "Swap $5K USDC for ETH because CT is bullish."
  2. Agent prepares the MoonPay swap request.
  3. Before calling moonpay-swap-tokens, the agent sends the reasoning to ThoughtProof.
  4. ThoughtProof returns:
    • ALLOW → proceed with swap
    • BLOCK → stop, surface objections
    • UNCERTAIN → escalate, ask for clarification or review
  5. If verification passes, the MoonPay skill executes the swap.

Example failure:

  • "Buy $50K of a token because influencers are bullish"
  • ThoughtProof → BLOCK
  • MoonPay execution never happens

Example pass:

  • "Rebalance portfolio back to target allocation with defined slippage and stop-loss constraints"
  • ThoughtProof → ALLOW
  • MoonPay executes

This gives the agent stack two layers:

  • MoonPay answers: can the transaction execute?
  • ThoughtProof answers: should the transaction execute?
  • moonpay-swap-tokens — Execute the swap after verification passes

© moonpay, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/thoughtproof-reasoning-check of moonpay/skills.

Open the folder on GitHubat commit aa672ab

Compare with similar skills

Thoughtproof Reasoning Check next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Thoughtproof Reasoning Check compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Thoughtproof Reasoning Check this skillmoonpay/skills113—~833Automated safety check: PassMIT
ModLens Image Vision Bridgeliustack/modlens4.2k1 repos~1.3kAutomated safety check: NotesMIT
Vision SkillsAnionex/agent-vision-toolkit1.2k1 repos~4kAutomated safety check: PassMIT
Distilly Person Profile Buildertitanwings/distilly25k—~15kAutomated safety check: NotesMIT
Evals Contextzgsm-ai/costrict4.4k1 repos~1.9kAutomated safety check: PassApache-2.0
J SpaceTiger3807861189/J-Space-Cognition-Suite3k—~3kAutomated safety check: PassApache-2.0

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Works with

Questions about Thoughtproof Reasoning Check

What does Thoughtproof Reasoning Check do?

Verify whether an AI agent's decision is well-reasoned before executing. Thoughtproof Reasoning Check is an agent skill from moonpay/skills. Verify whether an AI agent's decision is well-reasoned before executing.

How do I install Thoughtproof Reasoning Check in Claude Code?

Run `npx skills add moonpay/skills --skill thoughtproof-reasoning-check -a claude-code`. Or copy the skill folder (skills/thoughtproof-reasoning-check in moonpay/skills) into .claude/skills/thoughtproof-reasoning-check in your project. Claude Code loads it when a task matches its description.

How do I install Thoughtproof Reasoning Check in Codex?

Run `npx skills add moonpay/skills --skill thoughtproof-reasoning-check -a codex`. Or copy the skill folder (skills/thoughtproof-reasoning-check in moonpay/skills) into .agents/skills/thoughtproof-reasoning-check in your project. Codex loads it when a task matches its description.

Can I use Thoughtproof Reasoning Check in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add moonpay/skills --skill thoughtproof-reasoning-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/thoughtproof-reasoning-check, .gemini/skills/thoughtproof-reasoning-check, .github/skills/thoughtproof-reasoning-check and .opencode/skills/thoughtproof-reasoning-check in your project.

What does Thoughtproof Reasoning Check need to run?

Going by SKILL.md and its folder, Thoughtproof Reasoning Check needs the command-line tools its instructions call (curl).

Does Thoughtproof Reasoning Check access the network?

SKILL.md names 1 domain. In commands or code: api.thoughtproof.ai; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Thoughtproof Reasoning Check safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Thoughtproof Reasoning Check use?

Thoughtproof Reasoning Check is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Thoughtproof Reasoning Check use?

About 833 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Thoughtproof Reasoning Check?

Skills that share tags, products or a category with Thoughtproof Reasoning Check: ModLens Image Vision Bridge (liustack/modlens, 4.2k stars), Vision Skills (Anionex/agent-vision-toolkit, 1.2k stars), Distilly Person Profile Builder (titanwings/distilly, 25k stars) and Evals Context (zgsm-ai/costrict, 4.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Thoughtproof Reasoning Check?

moonpay (a GitHub organization) maintains it in moonpay/skills, which has 113 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on September 10, 2026.

Source: moonpay/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.