releases-mcp

releases-mcp is a skill for Claude Code from buildinternet/releases-cli. It costs 64 tokens per session (1,471 once invoked), scanned A, original, MIT.

A live lookup tool for software releases and changelogs. A changelog is the record of what changed between versions of a library or product.

In plain words
What is it for?
Use it to find recent releases, investigate what changed in a library, check migration risks, or compare release activity between products.
Why use it?
It avoids relying on outdated information when checking recent versions, migrations, or breaking changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the releases plugin — 3 skills shipped together

Good fit Use it to find recent releases, investigate what changed in a library, check migration risks, or compare release activity between products.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/buildinternet/releases-cli/releases-mcp
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.

Any agent
npx skills add buildinternet/releases-cli --skill releases-mcp
Clone the repo
git clone --depth 1 https://github.com/buildinternet/releases-cli

Made for: Claude Code.

Or install releases, the plugin that ships this one along with the rest of its 3 skills.

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 releases-mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/buildinternet/releases-cli/releases-mcp/github.svg)](https://agentmods.dev/skills/buildinternet/releases-cli/releases-mcp)
Your own site
<a href="https://agentmods.dev/skills/buildinternet/releases-cli/releases-mcp"><img src="https://agentmods.dev/badge/skills/buildinternet/releases-cli/releases-mcp/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 releases-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/buildinternet/releases-cli/releases-mcp"><img src="https://agentmods.dev/badge/skills/buildinternet/releases-cli/releases-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,471 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 $0.00064 $0.01471
Opus 5 $0.00032 $0.00736
Sonnet 5 $0.00013 $0.00294
Haiku 4.5 $0.00006 $0.00147

Measured 9d ago against content hash 7f3b1a42aaa6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

releases-mcp 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 9d 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/releases-mcp/SKILL.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Releases.sh — Changelog Lookup

When the user asks about releases, changelogs, or version updates, use the Releases.sh MCP tools to fetch current data instead of relying on training data. Training data is stale for fast-moving libraries; these tools read the live registry.

When to Use This Skill

Activate when the user:

  • Asks what's new or changed in a library/product ("What changed in Next.js 15?")
  • Wants recent releases or changelogs ("Show me the latest Tailwind releases")
  • Asks about breaking changes or migration ("Were there breaking changes in Prisma 6?")
  • Wants to compare release activity between products ("Compare Bun vs Deno releases")
  • Mentions version updates, release notes, or changelogs for a specific product
  • Asks about a curated topic feed ("what's new across the AI labs?")

The Tools

The hosted server exposes these tools. There is no AI summarization or comparison tool — you synthesize those yourself from the data below.

  • search — unified search across four sections: orgs, catalog (products + standalone sources), collections, and releases. Your default entry point.
  • get_latest_releases — recent releases, optionally scoped by organization or product. Use since / until for time windows.
  • list_organizations / get_organization — browse and inspect orgs.
  • list_catalog / get_catalog_entry — browse and inspect catalog entries. Each entry carries entryType: "product" | "source". get_catalog_entry also serves CHANGELOG slices (see below).
  • get_release — fetch one release in full by its rel_ id (ids come from search / get_latest_releases).
  • list_collections / get_collection / get_collection_releases — curated cross-org "playlists" (e.g. "Frontier AI Labs", "Coding Agents") independent of the category taxonomy.
  • lookup_domain — resolve a URL/domain to the org that owns it. Use when you have a URL-shaped input rather than a name.

The server also exposes signed-in personal-account toolsfollow / unfollow / list_follows, get_personalized_feed, and whats_changed (releases since the user's last check across their follows). They require an authenticated connection (OAuth or a user API key) and error for anonymous clients; the reader tools above need no auth. Reach for them only when the user asks about their follows or feed — for general "what's new in X" questions, the reader tools answer without sign-in.

Read the full file on GitHub · 74 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. 9d ago First seen · 74 lines · 64 tokens per session scan A 7f3b1a42aaa6

Subscribe to this mod's changes

releases-mcp is a skill published in the GitHub repository buildinternet/releases-cli (4 stars, last pushed 9d ago), licensed MIT. It adds 64 tokens to every session and 1,471 once invoked, about $0.0003 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.

Related

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generating-release-content

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parsing-changelogs

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grouping-releases

Group releases that cover the same underlying launch so readers see one story instead of three. Use when manually curating an org's coverage — reconciling a window of recent releases, fixing a bad automatic grouping, or linking coverage the deterministic clusterer can't see. Decide which item is the best entry point…

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creating-releases-json

Create or update a releases.json manifest so registries and agents can find where a company or project publishes its release notes. Use this whenever someone wants to "list our product on Releases", "add a releases.json", "get indexed on releases.sh", "here's our website, make us a manifest", declare a changelog /…

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