skill

skill is a skill for Claude Code, Codex from theshadow27/mcp-cli. It costs 0 tokens per session (1,578 once invoked), scanned A, original, MIT.

A command-line method for calling MCP servers from Bash instead of loading every server's tool description into the conversation.

In plain words
What is it for?
Finding MCP servers and tools, checking their input formats, and calling them with JSON from the command line. MCP is a standard way for AI tools to connect to external services.
Why use it?
It keeps conversations smaller when many external tools are available.

Skill for Claude CodeCodex

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 skills/theshadow27/mcp-cli/skill
Any agent
npx skills add theshadow27/mcp-cli --skill skill
Clone the repo
git clone --depth 1 https://github.com/theshadow27/mcp-cli

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 skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/theshadow27/mcp-cli/skill.svg)](https://agentmods.dev/skills/theshadow27/mcp-cli/skill)
Your own site
<a href="https://agentmods.dev/skills/theshadow27/mcp-cli/skill"><img src="https://agentmods.dev/badge/skills/theshadow27/mcp-cli/skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,578 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 $0.00000 $0.01578
Opus 5 $0.00000 $0.00789
Sonnet 5 $0.00000 $0.00316
Haiku 4.5 $0.00000 $0.00158

Measured 3d ago against content hash d95352c9c82e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill 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 3d 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.

skill/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP CLI — Context-Free MCP Tool Access

Use the mcx CLI via Bash instead of native MCP tools. This eliminates 15,000+ tokens of tool definitions per server from every conversation context.

When to Use This

Use mcx CLI when calling MCP server tools (Atlassian, Coralogix, etc.). Use native MCP tools only when mcx CLI is unavailable or for interactive/streaming use cases.

Trigger words: atlassian, confluence, jira, coralogix, mcp server, mcp tool

Quick Reference

# Discovery
mcx ls                                    # list servers + tool counts
mcx ls <server>                           # list tools for a server
mcx info <server> <tool>                  # TypeScript-notation schema
mcx grep <pattern>                        # search tools across all servers
mcx search <query>                        # search local tools, then registry

# Invocation
mcx call <server> <tool> '<json>'         # call a tool, JSON to stdout
mcx call <server> <tool> '<json>' --jq '.field'  # client-side jq filter
mcx call <server> <tool> '<json>' --full  # bypass output size protection

# Session Management
mcx claude spawn --task "..."             # start a Claude Code session
mcx claude ls                             # list active sessions
mcx claude send <session> <msg>           # send follow-up prompt
mcx claude bye <session>                  # end a session
mcx claude log <session>                  # view session transcript
mcx claude wait <session>                 # wait for session to idle
mcx claude wait --any                     # race: session idle or work item event
mcx claude interrupt <session>            # interrupt a running session
mcx mail -H                               # list inter-session message headers
mcx mail -s "subject" <recipient>         # send message (body from stdin)

# Work Item Tracking
mcx track <number>                        # track an issue or PR by number
mcx track --branch <name>                 # track a branch (before PR exists)
mcx untrack <number>                      # stop tracking
mcx tracked                               # list all tracked work items (table)
mcx tracked --json                        # machine-readable list
mcx tracked --phase impl                  # filter by phase

# Virtual Filesystem (clone/push/pull remote content)
mcx vfs clone confluence <space> [dir]   # clone a Confluence space as git repo
mcx vfs pull [dir]                        # pull remote changes
mcx vfs push [dir]                        # push local changes back to remote

# Server Management
mcx status                                # daemon health + server status
mcx restart [server]                      # reconnect server(s)
mcx daemon restart                        # restart the daemon
mcx daemon shutdown                       # stop the daemon
mcx logs <server>                         # view server stderr output
mcx install <server>                      # install server from registry
mcx upgrade                               # install latest mcx release binaries
mcx upgrade --check                       # check for updates
mcx config show                           # resolved config

Read the full file on GitHub · 146 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. 3d ago First seen · 146 lines · 0 tokens per session scan A d95352c9c82e

Subscribe to this mod's changes

skill is a skill published in the GitHub repository theshadow27/mcp-cli (2 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,578 tokens. 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.

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