Memorywhale
wuisabel-gif/MemWhale
Query and write durable debugging memory recorded by MemoryWhale.
Add a tool to the MCP server that lets AI agents play OpenFoot Manager.
Install Add MCP Tool
$ npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install openfootmanager/openfootmanager add-mcp-tool --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/openfootmanager/openfootmanager.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/add-mcp-tool .claude/skills/add-mcp-tool && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "add-mcp-tool" agent skill from https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-tool into .claude/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-toolType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install openfootmanager/openfootmanager add-mcp-tool --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/openfootmanager/openfootmanager.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/add-mcp-tool .agents/skills/add-mcp-tool && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "add-mcp-tool" agent skill from https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-tool into .agents/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install openfootmanager/openfootmanager add-mcp-tool --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/openfootmanager/openfootmanager.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/add-mcp-tool .cursor/skills/add-mcp-tool && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "add-mcp-tool" agent skill from https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-tool into .cursor/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/openfootmanager/openfootmanager.git --path .claude/skills/add-mcp-tool--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install openfootmanager/openfootmanager add-mcp-tool --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/openfootmanager/openfootmanager.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/add-mcp-tool .gemini/skills/add-mcp-tool && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "add-mcp-tool" agent skill from https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-tool into .gemini/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install openfootmanager/openfootmanager add-mcp-toolInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/openfootmanager/openfootmanager.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/add-mcp-tool .github/skills/add-mcp-tool && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "add-mcp-tool" agent skill from https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-tool into .github/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install openfootmanager/openfootmanager add-mcp-tool --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/openfootmanager/openfootmanager.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/add-mcp-tool .opencode/skills/add-mcp-tool && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "add-mcp-tool" agent skill from https://github.com/openfootmanager/openfootmanager/tree/develop/.claude/skills/add-mcp-tool into .opencode/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
add-mcp-tool- GitHub stars
- 1.1k
- Token cost
- ~1.6k tokens
- SKILL.md length
- 693 words
- Files
- 1
- Skills in repo
- 6
- Repo updated
- First seen
- Licence
- GPL-3.0
At a glance
Add a tool to the MCP server that lets AI agents play OpenFoot Manager.
- Works in 6 steps: Implement it in the right tools_impl/… → Register the route → Add the catalog entry → …
- Tasks that involve MCP servers
- SKILL.md covers 1. Implement it in the right…, 2. Register the route, 3. Add the catalog entry and 4. Emit game-state-changed if…, plus 4 more sections
- Calls cargo and curl
What it does
Add MCP Tool is an agent skill from openfootmanager/openfootmanager. Add a tool to the MCP server that lets AI agents play OpenFoot Manager. Follows the six-step checklist in tools.rs — route registration, catalog entry, implementation in the right toolsimpl module, game-state-changed emission, competition-mode gating, and the docs/MCPSERVER.md tables.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering MCP servers. It works with Model Context Protocol and Tauri. The repository describes itself as: An open source soccer/football manager game. The licence is GPL-3.0.
When your agent uses it
- Tasks that involve MCP servers
Example prompts
- “/add-mcp-tool”
Requirements
- Pre-approved tools (allowed-tools): Read, Edit, Write, Grep, Glob, Bash(cargo build*), Bash(cargo test*), Bash(cargo clippy*)
Workflow steps
6 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 90b05fd. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadEditWriteGrepGlobBash(cargo build*)Bash(cargo test*)Bash(cargo clippy*)
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
cargocurl
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use curl, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Add MCP Tool loads about 1.6k tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 693 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from openfootmanager/openfootmanager at commit 90b05fd, republished under its GPL-3.0 licence (© openfootmanager). 693 words, ~1,644 tokens.
Download SKILL.mdSave it as
.claude/skills/add-mcp-tool/SKILL.md (or your agent's skills folder).- name
- add-mcp-tool
- description
- Add a tool to the MCP server that lets AI agents play OpenFoot Manager. Follows the six-step checklist in tools.rs — route registration, catalog entry, implementation in the right tools_impl module, game-state-changed emission, competition-mode gating, and the docs/MCP_SERVER.md tables.
- allowed-tools
- Read, Edit, Write, Grep, Glob, Bash(cargo build*), Bash(cargo test*), Bash(cargo clippy*)
- when_to_use
- Adding or changing an MCP tool, exposing an existing Tauri command to agents, or when a tool exists but help_find_tool cannot see it.
- argument-hint
- [tool name and what it does]
Adding an MCP tool
The MCP server (src-tauri/src/mcp_server/, behind the mcp Cargo feature) lets AI agents play
the game over JSON-RPC. It is used for agent competitions — see docs/MCP_SERVER.md.
The authoritative checklist lives in the code, at tool_catalog() in
src-tauri/src/mcp_server/tools.rs. Read it; this skill expands on it.
The router and the catalog are two separate lists that must stay in sync. help_find_tool
searches only the catalog, so a tool registered in the router but missing from the catalog works
if an agent guesses its name and is otherwise invisible. The tools.rs tests
every_routed_tool_is_in_the_catalog, every_catalogued_tool_has_a_route, duplicate-name and
registration-parser checks enforce this when run with --lib --features mcp; they are not
executed by a default-feature test run.
1. Implement it in the right tools_impl/ module
src-tauri/src/mcp_server/tools_impl/ — info.rs, time.rs, squad.rs, training.rs,
transfers.rs, contracts.rs, inbox.rs, club.rs, scouting.rs, season.rs, game.rs,
live_match.rs, help.rs. Shared helpers (require_game, user_team, …) are in helpers.rs.
Call the same _internal function the Tauri command calls. Never reimplement game logic here.
If the behaviour has no _internal split yet, do that first — see /add-tauri-command. Check
that the shared function is reachable in default and mcp builds; application code never imports
MCP or commands. Apply the root Code quality limits and use /write-tests (programme PR 2) first.
Return text an agent can actually use. Tools return prose or JSON, not opaque ids: an agent
reading info_standings should be able to act on it without a second call. Follow the formatting
of the neighbouring tools in the module, and translate error keys through formatting.rs.
Respect competition-mode information limits. Full detail for the agent's own team; OVR,
position, age, and condition only for other teams unless the player has been scouted. A new
info_* tool that leaks opponent attributes silently breaks competition fairness.
2. Register the route
In build_tool_router() in tools.rs. Three macros cover most cases:
real_tool!— no parametersid_tool!— one required string parameter (the schema key and the impl function's second parameter name must match)custom_tool!— custom JSON schema plus custom extraction
Every registration is wrapped in a disabled.contains(…) check, which is how mode restrictions
and --mcp-disable-tools work.
3. Add the catalog entry
tool_catalog() in the same file: (name, description, category). Use an existing category
string exactly — a typo creates a phantom category in help_list_categories.
The description is what an agent reads when deciding whether to call the tool. Say what it does and when to use it.
4. Emit game-state-changed if it mutates
Any state-mutating tool must emit app.emit("game-state-changed", ()) via ctx.app_handle, so a
GUI watching the agent play refreshes. Read-only tools must not.
Show full SKILL.md (274 more words)Show less
5. Decide competition-mode visibility
If agents must not have this tool in a competition, add its name to the Competition arm of
disabled_tools() in src-tauri/src/mcp_server/config.rs. Currently disabled there: game_new,
game_select_team, game_export_world, game_exit, game_load_save — anything that would let
an agent change its own starting conditions.
6. Update docs/MCP_SERVER.md
Add the row to the right category table and update the two counts in the header line ("N tools are available across M categories") and the per-category heading ("### Squad (7 tools)"). Stale counts are how this document rots.
Verify
Finish with /preflight for the full default and MCP gate set. These scoped commands use the
same lockfile and warning policy; they do not replace the full preflight.
cargo build --locked --manifest-path src-tauri/Cargo.toml --features mcp
cargo clippy --locked --manifest-path src-tauri/Cargo.toml --workspace --all-targets --features mcp -- -D warnings
cargo test --locked --manifest-path src-tauri/Cargo.toml --workspace
cargo test --locked --manifest-path src-tauri/Cargo.toml --lib --features mcpThe mcp feature is not compiled by default, so a normal cargo check will not catch a
mistake in this code. Build and test with --features mcp. Add one test per GWT scenario
through the shared seam and adapter: wrapper equivalence, errors, competition gating and event
emission. For persistence claims, read the saved database through a fresh reader; a returned
clone does not prove a write. Use ofm-test-reviewer for regression effectiveness evidence.
End-to-end, against a running instance:
# tools/list — confirm the tool appears (and does NOT in competition mode if gated)
curl -X POST http://localhost:3001/mcp -H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'
# call it
curl -X POST http://localhost:3001/mcp -H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"your_tool","arguments":{}}}'docs/MCP_SERVER.md §"Quick Start" has the full launch command.
Checklist
- Implementation in the right
tools_impl/module, calling the shared_internalfunction - Route registered in
build_tool_router() - Entry added to
tool_catalog()with an existing category string -
game-state-changedemitted if and only if the tool mutates state - Competition-mode gating decided;
config.rsdisabled_tools()updated if needed - Information-visibility limits respected for other teams' players
-
docs/MCP_SERVER.mdtable row added and both tool counts updated - Builds and lints clean with
--features mcp - Verified via
tools/listandtools/callagainst a running instance
© openfootmanager, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .claude/skills/add-mcp-tool of openfootmanager/openfootmanager.
Open the folder on GitHubat commit 90b05fd
Compare with similar skills
Add MCP Tool next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Add MCP Tool this skillopenfootmanager/openfootmanager | 1.1k | — | ~1.6k | Automated safety check: Pass | GPL-3.0 | |
| Memorywhalewuisabel-gif/MemWhale | 154 | — | ~765 | Automated safety check: Pass | MIT | |
| Helmor Debug Operatedohooo/helmor | 1.3k | — | ~6.6k | Automated safety check: Pass | Apache-2.0 | |
| Memorywhale Evidencewuisabel-gif/MemWhale | 154 | — | ~459 | Automated safety check: Pass | MIT | |
| Editor Toolsdotnetdreamer/open-screenshot-generator | 125 | — | ~3.8k | Automated safety check: Pass | MIT | |
| Change Maple Agent ModeMaplePrivacyLabs/Maple | 100 | — | ~5.5k | Automated safety check: Notes | MIT |
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Related
Works with
Categories
Questions about Add MCP Tool
What does Add MCP Tool do?
Add a tool to the MCP server that lets AI agents play OpenFoot Manager. Add MCP Tool is an agent skill from openfootmanager/openfootmanager. Add a tool to the MCP server that lets AI agents play OpenFoot Manager.
When should I use Add MCP Tool?
Add MCP Tool fits situations like: tasks that involve MCP servers.
How do I install Add MCP Tool in Claude Code?
Run `npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a claude-code`. Or copy the skill folder (.claude/skills/add-mcp-tool in openfootmanager/openfootmanager) into .claude/skills/add-mcp-tool in your project. Claude Code loads it when a task matches its description.
How do I install Add MCP Tool in Codex?
Run `npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a codex`. Or copy the skill folder (.claude/skills/add-mcp-tool in openfootmanager/openfootmanager) into .agents/skills/add-mcp-tool in your project. Codex loads it when a task matches its description.
Can I use Add MCP Tool in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add openfootmanager/openfootmanager --skill add-mcp-tool -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-mcp-tool, .gemini/skills/add-mcp-tool, .github/skills/add-mcp-tool and .opencode/skills/add-mcp-tool in your project.
What does Add MCP Tool need to run?
Going by SKILL.md and its folder, Add MCP Tool needs the command-line tools its instructions call (cargo and curl). Its frontmatter pre-approves these tools: Read, Edit, Write, Grep, Glob, Bash(cargo build*), Bash(cargo test*), Bash(cargo clippy*).
Does Add MCP Tool access the network?
SKILL.md contains no URLs. Its commands use curl, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Add MCP Tool safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Add MCP Tool use?
Add MCP Tool is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Add MCP Tool use?
About 1.6k tokens (SKILL.md is roughly 6.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Add MCP Tool?
Skills that share tags, products or a category with Add MCP Tool: Memorywhale (wuisabel-gif/MemWhale, 154 stars), Helmor Debug Operate (dohooo/helmor, 1.3k stars), Memorywhale Evidence (wuisabel-gif/MemWhale, 154 stars) and Editor Tools (dotnetdreamer/open-screenshot-generator, 125 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Add MCP Tool?
openfootmanager (a GitHub organization) maintains it in openfootmanager/openfootmanager, which has 1,135 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 7, 2026.
Source: openfootmanager/openfootmanager on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.