Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/antoinebou12/uml-mcpnpx agentmods add skills/antoinebou12/uml-mcp/uml-mcp-navigationWrote 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.
[](https://agentmods.dev/skills/antoinebou12/uml-mcp/uml-mcp-navigation)<a href="https://agentmods.dev/skills/antoinebou12/uml-mcp/uml-mcp-navigation"><img src="https://agentmods.dev/badge/skills/antoinebou12/uml-mcp/uml-mcp-navigation/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.
<a href="https://agentmods.dev/skills/antoinebou12/uml-mcp/uml-mcp-navigation"><img src="https://agentmods.dev/badge/skills/antoinebou12/uml-mcp/uml-mcp-navigation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00087 | $0.01261 |
| Opus 5.5 | $0.00035 | $0.00504 |
| Sonnet 5.5 | $0.00017 | $0.00252 |
| Haiku 4.5 | $0.00009 | $0.00126 |
Grade A, and why
uml-mcp-navigation 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 23d 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.
How it starts
The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Navigating UML-MCP
First steps
- Read
AGENTS.md(preferences, facts) andSOUL.md(principles). - Check
.plan/STATUS.mdand.plan/BACKLOG.mdfor current state and priorities. - Use the map below; open the test file next to the code you change.
Feature map
| Feature | Code | Tests | Docs |
|---|---|---|---|
MCP tools (generate_uml, validate_uml, …) |
mcp_core/tools/diagram_tools.py, tool_decorator.py |
tests/test_diagram_tools.py, test_tool_decorator.py |
docs/api/tools.md |
| Resources / prompts | mcp_core/resources/diagram_resources.py, mcp_core/prompts/diagram_prompts.py |
tests/test_diagram_resources.py, test_diagram_prompts.py |
docs/reference/ |
| Rendering (Kroki, PlantUML, fallback) | tools/kroki/, mcp_core/core/utils.py |
tests/test_kroki.py, test_fallback_mechanism.py |
docs/fallback-mechanism.md |
| HTTP app (REST, AG-UI, /mcp mount) | app.py |
tests/test_app.py, test_agui.py |
docs/integrations/frontend.md |
| Stdio / CLI / subcommands | mcp_core/core/cli.py, commands.py, client_install.py |
tests/test_cli.py, test_client_install.py |
docs/installation-local.md |
Config file uml-mcp.yaml |
mcp_core/core/settings_file.py, mcp_core/config_templates/ |
tests/test_settings_file.py |
docs/configuration/uml-mcp-yaml.md |
| Env settings | mcp_core/core/config.py |
tests/test_config.py |
docs/configuration.md |
| Audit, metrics, rate limits, logging | mcp_core/observability/, mcp_core/core/http_observability.py |
tests/test_observability.py |
docs/enterprise/operations.md |
Lint (uml-mcp lint) |
mcp_core/quality/lint.py |
tests/test_lint.py |
docs/developers/linting.md |
| Enterprise auth (Entra / OAuth) | mcp_core/auth/ |
tests/test_auth_*.py, tests/http/entra-auth.http |
docs/enterprise/ |
| Admin dashboard | mcp_core/auth/admin/, mcp_core/observability/admin_api.py |
tests/test_auth_admin.py, test_admin_dashboard.py |
docs/enterprise/admin-ui.md |
| Admin console + Kroki page (playground, Docker stack) | mcp_core/admin/ (kroki_routes.py), mcp_core/kroki/, frontend/src/pages/Kroki.tsx, CLI uml-mcp kroki |
tests/test_admin_kroki.py, test_real_journeys.py, test_e2e_playwright.py |
docs/admin/ (install, user guide, tour) |
| Helm / Docker | deploy/helm/uml-mcp/, Dockerfile, docker-compose*.yml |
tests/test_enterprise_packaging.py, test_compose_profiles.py |
docs/enterprise/kubernetes.md, docs/deploy/docker.md |
| Smoke tests | scripts/run_mcp_smoke.py, tests/prompts/ |
tests/test_chatgpt_mcp_smoke_prompt.py |
tests/prompts/chatgpt_mcp_smoke_test.md |
| Diagram skills | .skill/skills/uml-mcp-diagrams/SKILL.md (canonical) |
mirror test in test_enterprise_packaging.py |
docs/integrations/cursor.md |
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.
- 23d ago Changed · +1 lines a3fdce44c332
- 25d ago First seen · 59 lines · 87 tokens per session scan A 52b512aad090
uml-mcp-navigation is a skill published in the GitHub repository antoinebou12/uml-mcp (107 stars, last pushed today), licensed MIT. It adds 87 tokens to every session and 1,261 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-26.
Other skills, from other repositories
orbit-notion
Open Orbit briefing skill — selected by the Orbit pipeline when Notion is the user's only connected connector, or when the user explicitly scopes their daily digest to Notion. Pulls the past 24 hours of document edits, comments, mentions, and database row changes from the user's authenticated Notion connection and…
agentmail
Use your assigned AgentMail inbox to read email tasks, explicitly send or reply, and check delivery. Provided automatically by your inbox assignment.
rowboat-spaces
How to work as a member of Rowboat Spaces, the team chat where people and agents work together. Load it once per session, before acting on any request that reaches you from Rowboat; it covers your setup, mentions and hand-offs, the tools, and files.
feishu
Work with Feishu or Lark bots, docs, sheets, bitables, approval flows, and OpenAPI/MCP setup without hardcoding credentials.
pinchtab-mcp
Use this skill when a task requires browser automation through PinchTab's MCP server connected to a remote browser instance. Covers navigation, element interaction, data extraction, form filling, multi-step flows, and session management via MCP tools.
Cortex
Operate Cortex, the LifeOS memory system — the typed Knowledge Archive (People, Companies, Ideas, Research with typed related: links) plus recall of prior work sessions, ISAs, and conversations. Search, add, harvest, develop, ingest, distill, graph-navigate, recall. USE WHEN cortex, knowledge, knowledge base, search…