What is rundida-mcp CLAUDE.md?

Instructions for using RunDida's MCP server, which gives AI agents running calculators, running guides, marathon information, pace predictions, and heart-rate zones.

Use them when developing, updating, testing, versioning, or publishing the RunDida MCP server.

They document the server's architecture, data source, files, version locations, and publishing requirements so changes stay consistent with the live service.

How XWeaponX7/rundida-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to XWeaponX7/rundida-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/XWeaponX7/rundida-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/XWeaponX7/rundida-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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/xweaponx7/rundida-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/xweaponx7/rundida-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/xweaponx7/rundida-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/xweaponx7/rundida-mcp/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/xweaponx7/rundida-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/xweaponx7/rundida-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 528 This file is loaded in full into every session.

When invoked 528 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00528	$0.00528
Opus 5.5	$0.00211	$0.00211
Sonnet 5.5	$0.00106	$0.00106
Haiku 4.5	$0.00053	$0.00053

Measured 2mo ago against content hash 0336bbbfeb3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rundida-mcp CLAUDE.md 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 2mo 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.md · 44 lines

What it actually says

RunDida MCP Server

MCP server for RunDida — 10 tools providing AI agents access to 99 running calculators, 56 guides, and 300+ marathon events.（数字随主站漂移：发版前用主站 _site/api/*.json 现拉刷新此处 + README + package.json + server.json 四处；marathons 一律写「300+」量级不写精确数——外部 desc 写死精确数必然陈旧，92/46/44 旧文案曾扩散全网 MCP 目录。）

Architecture

Single file: index.js (341 lines, Node.js ES module)
NPM: @rundida/mcp-server
Registry: io.github.XWeaponX7/rundida-mcp
Data source: All data fetched from https://rundida.com/api/ with 30-min cache
Compute tools: Pace, race prediction (Riegel + Jack Daniels VO2max), HR zones (Karvonen) — run locally, zero latency

Files

File	Purpose
`index.js`	MCP server source (single file)
`package.json`	NPM config, `mcpName` for registry
`server.json`	Official MCP Registry metadata
`README.md`	NPM + GitHub face (promotes rundida.com)
`LICENSE`	MIT
`CHANGELOG.md`	Version history

Version Sync (3 places)

When bumping version, update ALL THREE:

package.json → "version": "X.Y.Z"
server.json → "version" + packages[0].version
index.js → new McpServer({ version: 'X.Y.Z' })

Publish Flow

npm publish --access public     # NPM (may need browser 2FA)
mcp-publisher publish           # Official MCP Registry
git add . && git commit && git push  # GitHub

Important

This repo is typically operated from the main RunDida project (~/Desktop/Projects/rundida/) via cross-directory commands
The main project's CLAUDE.md has the authoritative MCP workflow documentation
Changes here should also be committed to this repo's GitHub (public facing)

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.

2mo ago First seen · 44 lines · 528 tokens per session scan A 0336bbbfeb3c

Subscribe to this mod's changes

rundida-mcp CLAUDE.md is an instructions file published in the GitHub repository XWeaponX7/rundida-mcp (1 stars, last pushed 3mo ago), licensed MIT. It adds 528 tokens to every session, about $0.0021 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.

ai-agents marathon mcp model-context-protocol running running-calculator

rundida-mcp CLAUDE.md next to 6 instructions from other repositories
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rundida-mcp: Instructions file for Claude Code