unlimited-mcp-selftest

unlimited-mcp-selftest is a skill for Claude Code, Codex from triumsebas/unlimited-mcp. It costs 98 tokens per session (1,602 once invoked), scanned C, original, Apache-2.0.

A regression-testing skill for an unlimited-mcp project that runs checks in stages, from linting and type checks to automated and live end-to-end tests.

In plain words
What is it for?
Use it to run the regression suite, testing battery, self-test, or full test process before a version update.
Why use it?
It provides one pass-or-fail report and stops when a stage fails, while using temporary test repositories instead of the user's projects.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to run the regression suite, testing battery, self-test, or full test process before a version update.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/triumsebas/unlimited-mcp/unlimited-mcp-selftest
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 triumsebas/unlimited-mcp --skill unlimited-mcp-selftest
Clone the repo
git clone --depth 1 https://github.com/triumsebas/unlimited-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 unlimited-mcp-selftest

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/triumsebas/unlimited-mcp/unlimited-mcp-selftest"><img src="https://agentmods.dev/badge/skills/triumsebas/unlimited-mcp/unlimited-mcp-selftest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,602 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00098 $0.01602
Opus 5 $0.00049 $0.00801
Sonnet 5 $0.00020 $0.00320
Haiku 4.5 $0.00010 $0.00160

Measured 12d ago against content hash b0d6fe1aeae2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade C, and why

unlimited-mcp-selftest scanned grade C with 1 finding 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 12d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf /tmp/umcp-selftest
skills/unlimited-mcp-selftest/SKILL.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: unlimited-mcp-selftest

Claude-Code wrapper that executes the project's regression battery and returns a single pass/fail report. The canonical test definitions live in AGENTS.md → "Regression suite"; this file only adds the execution flow.

Abort as soon as any tier fails — do not proceed to the next one.

Safety rule: never use the user's repos as test targets. All coding agent tests (B2, B4, B6b) use throwaway git repos created in /tmp and deleted immediately after.


Preparation (before Tier B)

Create two throwaway git repos — one local, one on the remote:

# local throwaway repo
mkdir -p /tmp/umcp-selftest
cd /tmp/umcp-selftest
git init
echo 'def hello():\n    pass' > hello.py
git add hello.py
git commit -m "init"
# remote throwaway repo (via run_command on mcp_localhost)
run_command(["git", "init", "/tmp/umcp-selftest"], exec_host="mcp_localhost")
run_command(["git", "-C", "/tmp/umcp-selftest", "commit", "--allow-empty", "-m", "init"],
            exec_host="mcp_localhost")
# write hello.py on remote via a small echo chain or sftp

Also: add_allowed_root("/tmp/umcp-selftest") so the agent can access it.


Flow

0. Tier 0 — Lint & types (headless, always)

Run from the unlimited-mcp repo root (not the throwaway repo):

uv run ruff check src tests
uv run ruff format --check src tests
uv run mypy

All green → continue. Any failure → stop, report output.

1. Tier A — Automated (always)

uv run pytest tests/integration/test_smoke.py -q

All green → continue. Any failure → stop, report failing test + assertion.

2. Tier B — Live end-to-end

B1 — Sysops remote

r = run_command(["echo", "b-remote"], exec_host="mcp_localhost")
r = await_job(r["job_id"])

Pass: status == "completed" and stdout contains b-remote.

B2 — Agent local + worktree (uses /tmp/umcp-selftest)

r = delegate_to_agent(
    "opencode_flash",
    prompt='Add a one-line docstring to the hello() function in hello.py. Only change that file.',
    cwd="/tmp/umcp-selftest",
    workspace="safe_dev",
    timeout_seconds=180,
)
r = await_job(r["job_id"])

Pass: status == "completed", branch non-null, changed_files non-empty.

Read the full file on GitHub · 192 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. 12d ago First seen · 192 lines · 98 tokens per session scan C b0d6fe1aeae2

Subscribe to this mod's changes

unlimited-mcp-selftest is a skill published in the GitHub repository triumsebas/unlimited-mcp (2 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 98 tokens to every session and 1,602 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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