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sequence

sequence is a skill for Claude Code, Codex from antoinebou12/uml-mcp. It costs 50 tokens per session (672 once invoked), scanned A, a copy of activity, MIT.

A writing guide for sequence diagrams in PlantUML, which show participants exchanging messages from top to bottom over time.

In plain words
What is it for?
Use it to document how users, services, databases, or other objects communicate, with image, PDF, text, or other output from uml-mcp.
Why use it?
It provides rules for ordering participants, messages, activations, returns, and notes in a readable interaction diagram.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 109repo +1 yesterday A scan 50 tokens copy · 86% MIT

Good fit Use it to document how users, services, databases, or other objects communicate, with image, PDF, text, or other output from uml-mcp.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/antoinebou12/uml-mcp/sequence
View source ↗ antoinebou12/uml-mcp antoinebou12.github.io
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.

Any agent
npx skills add antoinebou12/uml-mcp --skill sequence
Clone the repo
git clone --depth 1 https://github.com/antoinebou12/uml-mcp

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 sequence

README.md
[![agentmods](https://agentmods.dev/badge/skills/antoinebou12/uml-mcp/sequence/github.svg)](https://agentmods.dev/skills/antoinebou12/uml-mcp/sequence)
Your own site
<a href="https://agentmods.dev/skills/antoinebou12/uml-mcp/sequence"><img src="https://agentmods.dev/badge/skills/antoinebou12/uml-mcp/sequence/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.

agentmods 80×15 button for sequence

Your own site · 80×15
<a href="https://agentmods.dev/skills/antoinebou12/uml-mcp/sequence"><img src="https://agentmods.dev/badge/skills/antoinebou12/uml-mcp/sequence.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 672 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 86% copy Near-identical to another mod 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 5.1 $0.00050 $0.00672
Opus 5.5 $0.00020 $0.00269
Sonnet 5.5 $0.00010 $0.00134
Haiku 4.5 $0.00005 $0.00067

Measured 14d ago against content hash 44010ce4f40a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sequence 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 14d 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.

Origin

This is a copy

86% identical to activity — 61 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.skill/skills/sequence/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sequence diagram (uml-mcp)

diagram_type: sequence
Backend: plantuml
Output formats: png, svg, pdf, txt, base64

Shows object interactions arranged in time sequence

Load the workflow skill uml-mcp-diagrams for URL-first replies, progressive discovery, and which MCP tool to call. This file is notation only; it does not add an MCP tool.

Notation tips

  • Declare participants left-to-right in contact order; autoactivate on; hide footbox when no returns.
  • Messages top→bottom only; activate/deactivate pairs; notes for asides.

Themes

Pass theme to generate_uml / generate_uml_image (PlantUML built-in name). The server injects !theme <name> after @startuml when the source has no !theme yet.

Recommended: cerulean, materia, sketchy, cyborg, plain, aws-orange, blueprint, sandstone.

Match the page background (also see MCP prompt diagram_theme):

  • light / white: cerulean, materia, plain, sketchy, sandstone
  • dark / black: blueprint, cyborg, black-knight, carbon-gray, crt-green
  • B&W / print: plain, sketchy, sketchy-outline, mimeograph, lightgray

Or embed in source:

@startuml
!theme cerulean
' … diagram …
@enduml

Starter template

@startuml
participant User
participant System

User -> System: Request
System --> User: Response
@enduml

Example

@startuml
participant Client
participant API
participant Database

Client -> API: GET /resource
activate API
API -> Database: query
activate Database
Database --> API: result
deactivate Database
API --> Client: 200 JSON
deactivate API

alt Error
  API --> Client: 500
end
@enduml

Render with uml-mcp

  1. Set diagram_type to sequence exactly.
  2. Call validate_uml when the source is untrusted (prefer strict: true for Mermaid sequence).
  3. Call generate_uml, generate_uml_image (chat PNG), or generate_uml_batch.
  4. Pass theme when this skill's Themes section lists supported values.
  5. Surface the returned url / playground (see the workflow skill).

Read the full file on GitHub · 87 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. 14d ago First seen · 87 lines · 50 tokens per session scan A 44010ce4f40a

Subscribe to this mod's changes

sequence is a skill published in the GitHub repository antoinebou12/uml-mcp (109 stars, last pushed yesterday), licensed MIT. It adds 50 tokens to every session and 672 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to activity, differing in 61 lines, and is treated as a copy.

mcpuml
Related

sequence compared with skills from other repositories

sequence next to 6 skills from other repositories
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sequenceantoinebou12/uml-mcpSkill109yesterdayMITA50Claude Code, Codex
detailed-designpan94u/forgeSkill405d agononeA27Claude Code
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finishing-a-development-branchtakaakit/superpowers-umlSkill121mo agononeA27Claude Code
systematic-debuggingtakaakit/superpowers-umlSkill121mo agononeA21Claude Code
test-driven-developmenttakaakit/superpowers-umlSkill121mo agononeA17Claude Code