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mcp-cli

Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

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Price unconfirmed★ 164 GitHub starsRegistry updated · Sep 8, 2026agent-skill

Overview

Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

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MCP CLI (Transient MCP Access)

Overview

The mcp CLI (from github.com/f/mcptools) discovers and invokes MCP server capabilities on-demand. Use it when a task needs ONE server's tool — a doc fetch, a single query, a quick lookup — instead of permanently mounting that server as an always-loaded integration.

This keeps accelerators transient: spun up for the task, used, and dropped. A permanently mounted MCP server costs context on every session whether you call it or not. The CLI costs nothing until you run it.

Composes with cc10x:research.

Prerequisite (install once)

Check first: command -v mcp. If absent, install:

git clone https://github.com/f/mcptools /tmp/mcptools
CGO_ENABLED=0 go build -o ~/.local/bin/mcp /tmp/mcptools/cmd/mcptools
# ensure ~/.local/bin is on PATH

If go is unavailable, report that the accelerator is missing and proceed with built-in tools — do NOT treat the missing binary as a task blocker (it is a fallback message, not a wall).

Flow: discover → call → release

1. Discover first — always. Never call a tool whose schema you have not seen — guessed params fail silently or hit the wrong tool.

mcp tools <server-command>                 # list tools
mcp tools --format json <server-command>   # full param schema for parsing
mcp resources <server-command>             # list resources
mcp prompts <server-command>               # list prompts

2. Lead read-only when exploring. Restrict the surface before you touch an unfamiliar server:

mcp guard --allow 'tools:read_*,list_*' --deny 'tools:write_*,delete_*' <server-command>

Drop the guard only once you know exactly which write you intend.

3. Call with params matching the discovered signature exactly (param:str, param:num, [optional]):

mcp call <tool_name> --params '<json>' -f json <server-command>

Output -f json for parsing, -f pretty for reading. Check exit code and stderr on failure — a non-zero exit is a real error, not a fallback message.

Server-command examples:

stdio: npx -y @modelcontextprotocol/server-filesystem /path
HTTP: pass the URL (auto-detected); SSE via --transport sse
auth: --auth-header "Bearer <token>", --auth-user user:pass, or -e ENV_VAR for docker servers

Aliases (only for repeated use in one task)

If you call the same server several times, alias it; remove it when the task ends so nothing lingers:

mcp alias add <name> <server-command>   # then: mcp tools <name>, mcp call ... <name>
mcp alias remove <name>                 # release when done

Aliases persist in ~/.mcpt/aliases.json. Cleaning them up is part of keeping the accelerator transient.

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File metadata

name: mcp-cli
description: "Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration."
allowed-tools: Read Bash
user-invocable: false

View original text

---
name: mcp-cli
description: "Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration."
allowed-tools: Read Bash
user-invocable: false
---

# MCP CLI (Transient MCP Access)

## Overview

The `mcp` CLI (from `github.com/f/mcptools`) discovers and invokes MCP server capabilities on-demand. Use it when a task needs ONE server's tool — a doc fetch, a single query, a quick lookup — instead of permanently mounting that server as an always-loaded integration.

This keeps accelerators **transient**: spun up for the task, used, and dropped. A permanently mounted MCP server costs context on every session whether you call it or not. The CLI costs nothing until you run it.

Composes with `cc10x:research`.

## Prerequisite (install once)

Check first: `command -v mcp`. If absent, install:

```bash
git clone https://github.com/f/mcptools /tmp/mcptools
CGO_ENABLED=0 go build -o ~/.local/bin/mcp /tmp/mcptools/cmd/mcptools
# ensure ~/.local/bin is on PATH
```

If `go` is unavailable, report that the accelerator is missing and proceed with built-in tools — do NOT treat the missing binary as a task blocker (it is a fallback message, not a wall).

## Flow: discover → call → release

**1. Discover first — always.** Never call a tool whose schema you have not seen — guessed params fail silently or hit the wrong tool.

```bash
mcp tools <server-command>                 # list tools
mcp tools --format json <server-command>   # full param schema for parsing
mcp resources <server-command>             # list resources
mcp prompts <server-command>               # list prompts
```

**2. Lead read-only when exploring.** Restrict the surface before you touch an unfamiliar server:

```bash
mcp guard --allow 'tools:read_*,list_*' --deny 'tools:write_*,delete_*' <server-command>
```

Drop the guard only once you know exactly which write you intend.

**3. Call** with params matching the discovered signature exactly (`param:str`, `param:num`, `[optional]`):

```bash
mcp call <tool_name> --params '<json>' -f json <server-command>
```

Output `-f json` for parsing, `-f pretty` for reading. Check exit code and stderr on failure — a non-zero exit is a real error, not a fallback message.

**Server-command examples:**
- stdio: `npx -y @modelcontextprotocol/server-filesystem /path`
- HTTP: pass the URL (auto-detected); SSE via `--transport sse`
- auth: `--auth-header "Bearer <token>"`, `--auth-user user:pass`, or `-e ENV_VAR` for docker servers

## Aliases (only for repeated use in one task)

If you call the same server several times, alias it; remove it when the task ends so nothing lingers:

```bash
mcp alias add <name> <server-command>   # then: mcp tools <name>, mcp call ... <name>
mcp alias remove <name>                 # release when done
```

Aliases persist in `~/.mcpt/aliases.json`. Cleaning them up is part of keeping the accelerator transient.

Review the source

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Review before install: Avoid automatic install

License: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
AI review approval is missing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 164 stars, 25 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

Open full audit

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Start with one small task

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Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.

Source & usage notes

IndexedStatic Checked

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: romiluz13/cc10x
License: MIT
Version: 1.0.0
Last GitHub push: Aug 3, 2026
Registry updated: Sep 8, 2026
Instruction path: plugins/cc10x/skills/mcp-cli/SKILL.md @ 65a1b4261bb7

Version reported in registry metadata; check source releases before relying on it.

Quality

58/100

Promising

Trust

60/100

Sandbox only

Audit

71/100

Needs review

Open full audit View eval report

Dependency or permission surface needs review
Permission surface may require sandboxing
AI review approval is missing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 164 stars, 25 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

Verified installs: —
Outcomes: —

Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.

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More details

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Registry indexed

mcp-cli

Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

Review the source View on GitHub

Price unconfirmed★ 164 GitHub starsRegistry updated · Sep 8, 2026agent-skill

Overview

Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

Read full documentation

Source documentation, not instructions for this website. Review permissions before running any commands.

MCP CLI (Transient MCP Access)

Overview

Composes with cc10x:research.

Prerequisite (install once)

Check first: command -v mcp. If absent, install:

git clone https://github.com/f/mcptools /tmp/mcptools
CGO_ENABLED=0 go build -o ~/.local/bin/mcp /tmp/mcptools/cmd/mcptools
# ensure ~/.local/bin is on PATH

If go is unavailable, report that the accelerator is missing and proceed with built-in tools — do NOT treat the missing binary as a task blocker (it is a fallback message, not a wall).

Flow: discover → call → release

1. Discover first — always. Never call a tool whose schema you have not seen — guessed params fail silently or hit the wrong tool.

mcp tools <server-command>                 # list tools
mcp tools --format json <server-command>   # full param schema for parsing
mcp resources <server-command>             # list resources
mcp prompts <server-command>               # list prompts

2. Lead read-only when exploring. Restrict the surface before you touch an unfamiliar server:

mcp guard --allow 'tools:read_*,list_*' --deny 'tools:write_*,delete_*' <server-command>

Drop the guard only once you know exactly which write you intend.

3. Call with params matching the discovered signature exactly (param:str, param:num, [optional]):

mcp call <tool_name> --params '<json>' -f json <server-command>

Output -f json for parsing, -f pretty for reading. Check exit code and stderr on failure — a non-zero exit is a real error, not a fallback message.

Server-command examples:

stdio: npx -y @modelcontextprotocol/server-filesystem /path
HTTP: pass the URL (auto-detected); SSE via --transport sse
auth: --auth-header "Bearer <token>", --auth-user user:pass, or -e ENV_VAR for docker servers

Aliases (only for repeated use in one task)

If you call the same server several times, alias it; remove it when the task ends so nothing lingers:

mcp alias add <name> <server-command>   # then: mcp tools <name>, mcp call ... <name>
mcp alias remove <name>                 # release when done

Aliases persist in ~/.mcpt/aliases.json. Cleaning them up is part of keeping the accelerator transient.

View source ↗

File metadata

name: mcp-cli
description: "Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration."
allowed-tools: Read Bash
user-invocable: false

View original text

---
name: mcp-cli
description: "Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration."
allowed-tools: Read Bash
user-invocable: false
---

# MCP CLI (Transient MCP Access)

## Overview

The `mcp` CLI (from `github.com/f/mcptools`) discovers and invokes MCP server capabilities on-demand. Use it when a task needs ONE server's tool — a doc fetch, a single query, a quick lookup — instead of permanently mounting that server as an always-loaded integration.

This keeps accelerators **transient**: spun up for the task, used, and dropped. A permanently mounted MCP server costs context on every session whether you call it or not. The CLI costs nothing until you run it.

Composes with `cc10x:research`.

## Prerequisite (install once)

Check first: `command -v mcp`. If absent, install:

```bash
git clone https://github.com/f/mcptools /tmp/mcptools
CGO_ENABLED=0 go build -o ~/.local/bin/mcp /tmp/mcptools/cmd/mcptools
# ensure ~/.local/bin is on PATH
```

If `go` is unavailable, report that the accelerator is missing and proceed with built-in tools — do NOT treat the missing binary as a task blocker (it is a fallback message, not a wall).

## Flow: discover → call → release

**1. Discover first — always.** Never call a tool whose schema you have not seen — guessed params fail silently or hit the wrong tool.

```bash
mcp tools <server-command>                 # list tools
mcp tools --format json <server-command>   # full param schema for parsing
mcp resources <server-command>             # list resources
mcp prompts <server-command>               # list prompts
```

**2. Lead read-only when exploring.** Restrict the surface before you touch an unfamiliar server:

```bash
mcp guard --allow 'tools:read_*,list_*' --deny 'tools:write_*,delete_*' <server-command>
```

Drop the guard only once you know exactly which write you intend.

**3. Call** with params matching the discovered signature exactly (`param:str`, `param:num`, `[optional]`):

```bash
mcp call <tool_name> --params '<json>' -f json <server-command>
```

Output `-f json` for parsing, `-f pretty` for reading. Check exit code and stderr on failure — a non-zero exit is a real error, not a fallback message.

**Server-command examples:**
- stdio: `npx -y @modelcontextprotocol/server-filesystem /path`
- HTTP: pass the URL (auto-detected); SSE via `--transport sse`
- auth: `--auth-header "Bearer <token>"`, `--auth-user user:pass`, or `-e ENV_VAR` for docker servers

## Aliases (only for repeated use in one task)

If you call the same server several times, alias it; remove it when the task ends so nothing lingers:

```bash
mcp alias add <name> <server-command>   # then: mcp tools <name>, mcp call ... <name>
mcp alias remove <name>                 # release when done
```

Aliases persist in `~/.mcpt/aliases.json`. Cleaning them up is part of keeping the accelerator transient.

Review the source

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License: MIT
Price unconfirmed: We have not confirmed a price for this skill. Existing source and install links remain available.

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Skill source recorded

Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.

Review before install: Avoid automatic install

License: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
AI review approval is missing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 164 stars, 25 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

Open full audit

Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.

Start with one small task

1Read the source. Confirm the input, expected output, dependencies and permissions.
2Ask your agent for a plan. Approve setup and any costs before running a small isolated test.
3Check the output and changed files. Report only what actually ran; keep the source revision for reproduction.

Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.

Source & usage notes

IndexedStatic Checked

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: romiluz13/cc10x
License: MIT
Version: 1.0.0
Last GitHub push: Aug 3, 2026
Registry updated: Sep 8, 2026
Instruction path: plugins/cc10x/skills/mcp-cli/SKILL.md @ 65a1b4261bb7

Version reported in registry metadata; check source releases before relying on it.

Quality

58/100

Promising

Trust

60/100

Sandbox only

Audit

71/100

Needs review

Open full audit View eval report

Dependency or permission surface needs review
Permission surface may require sandboxing
AI review approval is missing
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
Stars/forks activity: 164 stars, 25 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

Verified installs: —
Outcomes: —

Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.

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More details

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Creator: romiluz13
Source: romiluz13/cc10x
Indexed by: OpenAgentSkill community index

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Overview

MCP CLI (Transient MCP Access)

Overview

Prerequisite (install once)

Flow: discover → call → release

Aliases (only for repeated use in one task)

Review the source

Price & running costs

Start with one small task

Source & usage notes

Agent access

Related skills

For the creator

Registry indexed

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Overview

MCP CLI (Transient MCP Access)

Overview

Prerequisite (install once)

Flow: discover → call → release

Aliases (only for repeated use in one task)

Review the source

Price & running costs

Start with one small task

Source & usage notes

Agent access

Related skills

For the creator

Registry indexed

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