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fusion-tea: Skill for Claude Code

.agents/skills/implement-model/SKILL.md

implement-model is a skill for Claude Code from 1cFE/fusion-tea. It costs 18 tokens per session (710 once invoked), scanned A, original, MIT.

A workflow for building SysML v2 models from an approved plan while tracking progress and checking the result. SysML v2 is a language for describing engineered systems and their relationships.

In plain words
What is it for?
Use it to implement planned SysML v2 models, validate them, and record implementation progress.
Why use it?
It connects an agreed design to implementation and keeps validation and progress visible during model construction.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool; mentions Claude Code; installed under .agents/ (shared by several agents).

This is 1cFE/fusion-tea's own configuration. It tells Claude Code how to work on fusion-tea itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything fusion-tea configures →

not rated 5repo changed 24d ago A scan 18 tokens original MIT
View source ↗ 1cFE/fusion-tea
Reuse

Borrowing it

Nothing to install: this file belongs to 1cFE/fusion-tea. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/1cFE/fusion-tea/main/.agents/skills/implement-model/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/1cFE/fusion-tea

Made for: Claude Code.

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.

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README.md
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agentmods 80×15 button for implement-model

Your own site · 80×15
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Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 710 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 original No closer match found 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 $0.00018 $0.00710
Opus 5.5 $0.00007 $0.00284
Sonnet 5.5 $0.00004 $0.00142
Haiku 4.5 $0.00002 $0.00071

Measured 24d ago against content hash 2a51b60ac62e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

implement-model 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 24d 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.

.agents/skills/implement-model/SKILL.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Before executing this skill, read .agentic-mbse/claude.md in Claude Code or .agentic-mbse/codex.md in Codex. Resolve supporting paths from this skill’s installed directory; keep generated outputs in the project or a temporary directory. Read referenced skills from .agents/skills/<name>/SKILL.md when their guidance is needed.

Implement Model

Produce the authorized model and test changes. Apply “Process Selection” in modeling_project/MODELING_PROCESS.md; use existing requirements and design evidence, including a combined work record. Maintain progress in the existing checklist; do not create missing stage documents solely to enter implementation.

Resume from Evidence

Read the plan, spec acceptance conditions, and the design/source sections relevant to the current work. Expand those reads when an unexpected dependency appears. Inspect existing files and results before repeating completed steps. Implementation may begin from an existing prototype or directly from a design whose approach is understood.

Use the scope already authorized by the owner or coordinator. Do not add routine approval pauses between checklist entries.

Implement and Check

Work in dependency order. Before changing calculations, bindings, interfaces, or semantic operators, read the applicable reference selected by the technical-pattern table in modeling_project/MODELING_PROCESS.md, unless already loaded and current. Follow project requirements and the sysml-conventions, project-structure, and source-traceability guidance as applicable. Keep physical ownership, interfaces, and analytical bindings consistent with the design, including affected consumers outside the edited file.

Validate at useful change boundaries: focused parsing or tests while editing, relevant integration/regression checks when the change is coherent. Use model-validation to distinguish structural checks from source, numerical, and engineering evidence. Check repaired behavior through the actual supported route; preserve meaningful failure cases as tests where feasible. Unavailable or skipped checks remain unverified.

Read the full file on GitHub · 38 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. 24d ago Changed · -7 lines 2a51b60ac62e
  2. 1mo ago First seen · 45 lines · 18 tokens per session scan A db87f5cd5d42

Subscribe to this mod's changes

implement-model is a skill published in the GitHub repository 1cFE/fusion-tea (5 stars, last pushed 24d ago), licensed MIT. It adds 18 tokens to every session and 710 once invoked, about $0.0001 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 2026-09-29.

PlanningScientific
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implement-model next to 6 skills from other repositories
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