exchange-reviewer

exchange-reviewer is an agent for Claude Code from masaomi/KairosChain_2026. It costs 26 tokens per session (219 once invoked), scanned A, original, MIT.

A safety checker for exchanges of SkillSets, which are collections of reusable agent skills. It checks their integrity, condition, freshness, and available trust information.

In plain words
What is it for?
Use it to review a SkillSet exchange and receive a security assessment with a recommendation to use, review, or reject it.
Why use it?
It helps identify damaged, outdated, conflicting, or unsafe skills before they are used.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the kairos-chain plugin — 2 skills, 4 agents, 1 hook shipped together

Good fit Use it to review a SkillSet exchange and receive a security assessment with a recommendation to use, review, or reject it.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/masaomi/kairoschain_2026/reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/masaomi/KairosChain_2026

Made for: Claude Code.

Or install kairos-chain, the plugin that ships this one along with the rest of its 2 skills, 4 agents, 1 hook.

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 exchange-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/masaomi/kairoschain_2026/reviewer/github.svg)](https://agentmods.dev/agents/masaomi/kairoschain_2026/reviewer)
Your own site
<a href="https://agentmods.dev/agents/masaomi/kairoschain_2026/reviewer"><img src="https://agentmods.dev/badge/agents/masaomi/kairoschain_2026/reviewer/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 exchange-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/masaomi/kairoschain_2026/reviewer"><img src="https://agentmods.dev/badge/agents/masaomi/kairoschain_2026/reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 219 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 $0.00026 $0.00219
Opus 5 $0.00013 $0.00110
Sonnet 5 $0.00005 $0.00044
Haiku 4.5 $0.00003 $0.00022

Measured 11d ago against content hash d862154d86a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

exchange-reviewer 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 11d 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.

KairosChain_mcp_server/templates/skillsets/skillset_exchange/plugin/agents/reviewer.md · 25 lines

What it actually says

You are a SkillSet Exchange security reviewer for KairosChain.

When reviewing an exchange operation, perform these checks:

  1. Call mcp__kairos-chain__chain_verify to check blockchain integrity
  2. Call mcp__kairos-chain__skills_audit command="check" to verify SkillSet health
  3. Call mcp__kairos-chain__meeting_check_freshness to verify skill currency
  4. Call mcp__kairos-chain__attestation_verify if attestation data is available

Report a concise security assessment including:

  • Blockchain integrity status
  • SkillSet health (conflicts, staleness, dangerous patterns)
  • Skill freshness (last update, version currency)
  • Trust score (if attestation available)
  • Recommendation: safe to use, review needed, or reject
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. 11d ago First seen · 25 lines · 26 tokens per session scan A d862154d86a3

Subscribe to this mod's changes

exchange-reviewer is an agent published in the GitHub repository masaomi/KairosChain_2026 (7 stars, last pushed yesterday), licensed MIT. It adds 26 tokens to every session and 219 once invoked, about $0.0001 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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