cloakbrowser-mcp: Skill for Claude Code

.agents/skills/project-release/SKILL.md

project-release is a skill for Claude Code, Codex from swimmwatch/cloakbrowser-mcp. It costs 85 tokens per session (1,875 once invoked), scanned A, original, MIT.

A release procedure for cloakbrowser-mcp, a software project that connects browser tools to coding agents. It covers preparing, publishing, checking, and recovering a versioned release.

In plain words
What is it for?
Use it when explicitly preparing or publishing a cloakbrowser-mcp release, including its GitHub, npm, Docker, MCP Registry, and documentation updates.
Why use it?
It prevents release steps from being skipped or performed without a confirmed version and stability choice. It also separates preparation and publishing actions that need authorization.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is swimmwatch/cloakbrowser-mcp's own configuration. It tells Claude Code and Codex how to work on cloakbrowser-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cloakbrowser-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to swimmwatch/cloakbrowser-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/swimmwatch/cloakbrowser-mcp/main/.agents/skills/project-release/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/swimmwatch/cloakbrowser-mcp

Made for: Claude Code, Codex.

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 project-release

README.md
[![agentmods](https://agentmods.dev/badge/skills/swimmwatch/cloakbrowser-mcp/project-release.svg)](https://agentmods.dev/skills/swimmwatch/cloakbrowser-mcp/project-release)
Your own site
<a href="https://agentmods.dev/skills/swimmwatch/cloakbrowser-mcp/project-release"><img src="https://agentmods.dev/badge/skills/swimmwatch/cloakbrowser-mcp/project-release.svg" alt="Measured on agentmods" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,875 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 7 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 174
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium MCP Rug Pull · line 121
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 162
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium Agent Snooping · line 135
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium MCP Rug Pull · line 161
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • medium MCP Rug Pull · line 163
    Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.
    Fix: Pin the image: image:tag or image@sha256:abc123
  • low Tool Misuse · line 121
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 $0.00085 $0.01875
Opus 5 $0.00043 $0.00937
Sonnet 5 $0.00017 $0.00375
Haiku 4.5 $0.00009 $0.00187

Measured 8d ago against content hash 63d7e6c89b1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

project-release 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 8d 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.

.agents/skills/project-release/SKILL.md · 184 lines

How it starts

The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Release

Use this skill only for cloakbrowser-mcp release work. Require a confirmed target version such as v1.2.8, and decide whether it is stable or prerelease before preparing, publishing, or recovering a release. If the user has not provided a target version, propose one from the unreleased changes and ask the user through Prompt MCP to confirm it or choose a different tag before release execution.

Release tags use Semantic Versioning 2.0.0 with the repository's v prefix, for example v1.2.8 or v1.2.8-rc.1. The pinned specification URL is https://semver.org/spec/v2.0.0.html.

Authorization And Interview

  • Start or reopen a persistent workspace Prompt MCP interview with a stable ID such as release:vX.Y.Z after inspecting the callable schemas.
  • Record target tag and stable/prerelease selection as separate material decisions. Treat only committed answers as confirmation.
  • Release preparation, commit, push, release PR creation/update, merge, tag or GitHub Release creation, npm publication, Docker publication, MCP Registry publication, workflow rerun, and recovery mutations are separate authorization gates.
  • Never infer publish authorization from version confirmation, preparation approval, merged code, or passing checks.

Choosing The Target Version

  • If the user provides a target tag, validate it before changing files.
  • If no target tag is provided, fetch tags and inspect changes since the previous release tag:
git fetch origin --tags --prune
git describe --tags --abbrev=0
git log --oneline <previous-tag>..HEAD
  • Also inspect [Unreleased] in CHANGELOG.md, merged PR titles, and Conventional Commit subjects when available.
  • Propose the next tag using Semantic Versioning 2.0.0:
    • MAJOR for backward-incompatible public API, CLI, MCP protocol, config, or artifact contract changes;
    • MINOR for backward-compatible user-facing features;
    • PATCH for backward-compatible fixes, dependency updates, docs, CI, or packaging-only changes.
  • Present the proposed tag and short rationale, then ask the user to confirm it or choose another tag through Prompt MCP. Do not run npm run version:apply until the tag is confirmed and release preparation is explicitly authorized.

Read the full file on GitHub · 184 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. 8d ago First seen · 184 lines · 85 tokens per session scan A 63d7e6c89b1a

Subscribe to this mod's changes

project-release is a skill published in the GitHub repository swimmwatch/cloakbrowser-mcp (56 stars, last pushed 3d ago), licensed MIT. It adds 85 tokens to every session and 1,875 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 2026-08-30.

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