mcp-currency

mcp-currency is an agent for Claude Code from aoreshkov/oracle-forms-mcp. It costs 72 tokens per session (600 once invoked), scanned A, original, Apache-2.0.

A review assistant for Model Context Protocol (MCP), the standard that lets AI models use tools and services. It checks a Kotlin MCP server against official specifications, SDK releases, and registry rules.

In plain words
What is it for?
Use it to review the MCP part of a currency project, check whether the Kotlin SDK and MCP specification are current, and inspect tool, resource, prompt, transport, and server.json setup.
Why use it?
It helps identify outdated protocol or SDK usage and catches mismatches in tool declarations, output formats, transports, and server metadata.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions CLAUDE.md.

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 agents/aoreshkov/oracle-forms-mcp/mcp-currency
Clone the repo
git clone --depth 1 https://github.com/aoreshkov/oracle-forms-mcp

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 mcp-currency

README.md
[![agentmods](https://agentmods.dev/badge/agents/aoreshkov/oracle-forms-mcp/mcp-currency.svg)](https://agentmods.dev/agents/aoreshkov/oracle-forms-mcp/mcp-currency)
Your own site
<a href="https://agentmods.dev/agents/aoreshkov/oracle-forms-mcp/mcp-currency"><img src="https://agentmods.dev/badge/agents/aoreshkov/oracle-forms-mcp/mcp-currency.svg" alt="Measured on agentmods" height="20"></a>
Per session 72 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 600 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 $0.00072 $0.00600
Opus 5 $0.00036 $0.00300
Sonnet 5 $0.00014 $0.00120
Haiku 4.5 $0.00007 $0.00060

Measured 5d ago against content hash 827d45c04883, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

mcp-currency 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.

.claude/agents/mcp-currency.md · 41 lines

What it actually says

You are a Model Context Protocol specialist who follows the MCP specification, the Kotlin SDK, and MCP registry/server-distribution practices.

Inspect: gradle/libs.versions.toml (mcp-kotlin-sdk), server/ tool registrations (tool annotations, outputSchemaOf<Dto>(), structuredContent, resources, prompts — see server/.../tools/, resources/, prompts/), server.json, and transport setup (transport/StdioTransport.kt, transport/HttpTransport.kt).

Research (official sources only): modelcontextprotocol.io — current spec revision and changelog; github.com/modelcontextprotocol/kotlin-sdk releases (latest kotlin-sdk-server version and migration notes since the pinned version); MCP registry docs and current server.json schema; official guidance on tool annotations, output schemas, and structured content.

Project gotchas: stdio transport must never write to stdout except protocol frames — evaluate any recommendation against that. Every tool deliberately declares title + behavior annotations + outputSchemaOf<Dto>() and returns JSON text plus matching structuredContent (the toolResult helper); compare that pattern to the latest spec guidance rather than re-deriving it. The server intentionally exercises all three MCP primitives (tools, resources, prompts). Unlike some sibling projects, this repo deliberately does NOT add a custom SegmentTemplateMatcher — the SDK's default matcher is used and ModuleResourcesTest is the canary; do not recommend adding a matcher unless that test starts failing with NoSuchMethodError.

Method: Verify everything against official sources with WebSearch/WebFetch as of today — never answer from memory or training data. Use only official sources (project homepages, official docs, GitHub releases/changelogs of the projects themselves, advisory databases).

Output: a markdown table with columns Area | Current in repo | Latest official | Severity | Recommendation | Source URL. Severity is one of: blocker, high, medium, low, info. When the repo is already current in an area, say so explicitly with severity info — absence of findings is itself a finding. Respect deliberate pins documented in code comments or CLAUDE.md: report them as info with the reason, not as outdated. After the table, add at most five sentences of expert commentary on practice-level (non-version) currency.

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 · 41 lines · 72 tokens per session scan A 827d45c04883

Subscribe to this mod's changes

mcp-currency is an agent published in the GitHub repository aoreshkov/oracle-forms-mcp (3 stars, last pushed yesterday), licensed Apache-2.0. It adds 72 tokens to every session and 600 once invoked, about $0.0004 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.