OpenAPI to MCP Server
mcp-use/mcp-use
Turns an OpenAPI or Swagger spec into an MCP server with the mcp-use TypeScript SDK, mapping each operation to a tool, wiring auth, testing and deploying.
Manage and inspect a running Ella Core private mobile network via its REST API.
Install Ella Core
$ npx skills add ellanetworks/core --skill ella-core -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ellanetworks/core ella-core --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/ellanetworks/core.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/ella-core .claude/skills/ella-core && 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 "ella-core" agent skill from https://github.com/ellanetworks/core/tree/main/skills/ella-core into .claude/skills/ella-core/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ella-core", 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/ellanetworks/core/tree/main/skills/ella-coreType 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 ellanetworks/core --skill ella-core -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ellanetworks/core ella-core --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ellanetworks/core.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/ella-core .agents/skills/ella-core && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ella-core" agent skill from https://github.com/ellanetworks/core/tree/main/skills/ella-core into .agents/skills/ella-core/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ella-core", 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 ellanetworks/core --skill ella-core -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ellanetworks/core ella-core --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ellanetworks/core.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/ella-core .cursor/skills/ella-core && 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 "ella-core" agent skill from https://github.com/ellanetworks/core/tree/main/skills/ella-core into .cursor/skills/ella-core/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ella-core", 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/ellanetworks/core.git --path skills/ella-core--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 ellanetworks/core --skill ella-core -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ellanetworks/core ella-core --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ellanetworks/core.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/ella-core .gemini/skills/ella-core && 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 "ella-core" agent skill from https://github.com/ellanetworks/core/tree/main/skills/ella-core into .gemini/skills/ella-core/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ella-core", 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 ellanetworks/core ella-coreInstalls 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 ellanetworks/core --skill ella-core -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ellanetworks/core.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/ella-core .github/skills/ella-core && 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 "ella-core" agent skill from https://github.com/ellanetworks/core/tree/main/skills/ella-core into .github/skills/ella-core/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ella-core", 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 ellanetworks/core --skill ella-core -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ellanetworks/core ella-core --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ellanetworks/core.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/ella-core .opencode/skills/ella-core && 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 "ella-core" agent skill from https://github.com/ellanetworks/core/tree/main/skills/ella-core into .opencode/skills/ella-core/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ella-core", 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
ella-core- GitHub stars
- 109
- Token cost
- ~1.1k tokens
- SKILL.md length
- 456 words
- Files
- 6 (incl. references)
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Manage and inspect a running Ella Core private mobile network via its REST API.
- Works in 4 steps: Confirm with the user first. State what… → List or GET before delete. Confirm the… → Verify prerequisites before create.… → …
- The user asks to provision
- SKILL.md covers Connection, Calling the API, Endpoint namespacing and Response envelope, plus 4 more sections
- Calls curl, jq and python3; reaches docs.ellanetworks.com; needs ELLA_CORE_TOKEN
What it does
Ella Core is an agent skill from ellanetworks/core. Manage and inspect a running Ella Core private mobile network via its REST API. Use when the user asks to provision, update, list, inspect, or delete subscribers, profiles, slices, policies, data networks, radios, routes, BGP peers, NAT, operators, or users; or asks about live status, data usage, flow reports, audit logs, AMF/SMF/UPF state, PDU sessions, gNB connections, IMSIs, S-NSSAIs, DNNs, 5QI, AMBR, ARP, or any runtime telemetry of an Ella Core instance.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/auth.md`, `references/conventions.md` and `references/data-model.md`).
It sits in Backend & APIs, covering REST APIs. It works with OpenAPI. The repository describes itself as: Ella Core is a mobile core designed for private networks.
When your agent uses it
- The user asks to provision
- Delete subscribers
- Asks about live status
- AMF/SMF/UPF state
Example prompts
- “/ella-core”
Requirements
- Python 3
- A credential in ELLA_CORE_TOKEN
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Confirm with the user first. State what will change and ask for explicit approval. Do not chain destructive calls without re-confirming.
- List or GET before delete. Confirm the target exists and show its current state to the user.
- Verify prerequisites before create. Resources follow a strict dependency chain (data network → slice → profile → policy → subscriber). See…
- One change at a time. Don't bundle unrelated mutations. Re-read state after each one to confirm it landed.
What it can do on your machine
Read from SKILL.md and the folder at commit 6cec7a5. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
curljqpython3
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
docs.ellanetworks.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
ELLA_CORE_TOKEN
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Ella Core loads about 1.1k tokens when it runs, and up to ~3.8k if it reads all its reference files. Until then it costs about 118 tokens; SKILL.md has 456 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 456 words (~1,124 tokens).
“Ella Core is a 4G and 5G private mobile network packaged as a single Go binary (AMF + SMF + UPF + AUSF). This skill operates a running instance via its REST API.”
- name
- ella-core
- metadata.version
- 0.2.0
- metadata.author
- ellanetworks
Files
SKILL.md and 5 other files (references) in skills/ella-core of ellanetworks/core.
- SKILL.md
- references/auth.md
- references/conventions.md
- references/data-model.md
- references/examples.md
- references/troubleshooting.md
Open the folder on GitHubat commit 6cec7a5
Compare with similar skills
Ella Core 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 |
|---|---|---|---|---|---|---|
| Ella Core this skillellanetworks/core | 109 | — | ~1.1k | Automated safety check: Pass | Custom licence | |
| OpenAPI to MCP Servermcp-use/mcp-use | 11k | — | ~5.2k | Automated safety check: Pass | Apache-2.0 | |
| Use Yaakmountain-loop/yaak | 19k | — | ~1.9k | Automated safety check: Pass | MIT | |
| API DesignerJeffallan/claude-skills | 12k | 1 repos | ~2k | Automated safety check: Pass | MIT | |
| Pangolin CRUD Endpointsfosrl/pangolin | 23k | — | ~461 | Automated safety check: Pass | Custom licence | |
| Old Coder API DesignAmazingAng/old-coder | 750 | — | ~3.4k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Ella Core
What does Ella Core do?
Manage and inspect a running Ella Core private mobile network via its REST API. Ella Core is an agent skill from ellanetworks/core. Manage and inspect a running Ella Core private mobile network via its REST API.
When should I use Ella Core?
Ella Core fits situations like: the user asks to provision; delete subscribers; asks about live status; AMF/SMF/UPF state.
How do I install Ella Core in Claude Code?
Run `npx skills add ellanetworks/core --skill ella-core -a claude-code`. Or copy the skill folder (skills/ella-core in ellanetworks/core) into .claude/skills/ella-core in your project. Claude Code loads it when a task matches its description.
How do I install Ella Core in Codex?
Run `npx skills add ellanetworks/core --skill ella-core -a codex`. Or copy the skill folder (skills/ella-core in ellanetworks/core) into .agents/skills/ella-core in your project. Codex loads it when a task matches its description.
Can I use Ella Core 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 ellanetworks/core --skill ella-core -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ella-core, .gemini/skills/ella-core, .github/skills/ella-core and .opencode/skills/ella-core in your project.
What does Ella Core need to run?
Going by SKILL.md and its folder, Ella Core needs the command-line tools its instructions call (curl, jq and python3) and credentials named ELLA_CORE_TOKEN. Our summary lists: Python 3; A credential in ELLA_CORE_TOKEN.
Does Ella Core access the network?
SKILL.md names 1 domain. In commands or code: docs.ellanetworks.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Ella Core 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 Ella Core use?
Ella Core has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Ella Core use?
About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.7k tokens, read only when the agent opens those files.
What are the alternatives to Ella Core?
Skills that share tags, products or a category with Ella Core: OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars), Use Yaak (mountain-loop/yaak, 19k stars), API Designer (Jeffallan/claude-skills, 12k stars) and Pangolin CRUD Endpoints (fosrl/pangolin, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ella Core?
ellanetworks (a GitHub organization) maintains it in ellanetworks/core, which has 109 GitHub stars. The repository was last updated on October 9, 2026.
Source: ellanetworks/core on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.