Agent skill

Rfc Impl Generator

by SepineTam in SepineTam/mcp-for-stata

Generate RFC and IMPL documents from a user-provided feature/fix description.

AGPL-3.0Auto-check passedResearch & Science

Install Rfc Impl Generator

skills CLI
$ npx skills add SepineTam/mcp-for-stata --skill rfc-impl-generator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install SepineTam/mcp-for-stata rfc-impl-generator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/SepineTam/mcp-for-stata.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/rfc-impl-generator .claude/skills/rfc-impl-generator && rm -rf skills-src

Use ~/.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/

Facts

Skill name
rfc-impl-generator
GitHub stars
264
Token cost
~1.1k tokens
SKILL.md length
561 words
Files
6 (incl. references)
Skills in repo
6
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Generate RFC and IMPL documents from a user-provided feature/fix description.

  • Works in 5 steps: Receive the User's Description → Assess Information Completeness → Ask Clarifying Questions (if needed) → …
  • The user says something like I want to add a feature with codex
  • SKILL.md covers When to Use, Workflow and Reference Files
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Rfc Impl Generator is an agent skill from SepineTam/mcp-for-stata. Generate RFC and IMPL documents from a user-provided feature/fix description. Use when the user says something like "I want to add a feature with codex", "Implement this", "Write an RFC for...", or provides a short idea that needs to be formalized into the ai-driven/rfc + ai-driven/impl pipeline.

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/impl-example.md`, `references/impl-template.md` and `references/rfc-example.md`).

It sits in Research & Science, covering Econometrics and empirical research. It works with Model Context Protocol. The repository describes itself as: Stata-MCP: A MCP server for integrating Stata into your agent loop with a safety-first design. The licence is AGPL-3.0.

When your agent uses it

  • The user says something like I want to add a feature with codex
  • Write an RFC for...
  • Provides a short idea that needs to be formalized into the ai-driven/rfc + ai-driven/impl pipeline

Example prompts

  • “I want to add a feature with codex”
  • “Implement this”
  • “Write an RFC for...”
  • “/rfc-impl-generator”

Requirements

  • Pre-approved tools (allowed-tools): Read, Grep, Write, Edit, AskUserQuestion

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Receive the User's Description
  2. Assess Information Completeness
  3. Ask Clarifying Questions (if needed)
  4. Generate the Documents
  5. Present to User

What it can do on your machine

Read from SKILL.md and the folder at commit d339615. 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:

    • Read
    • Grep
    • Write
    • Edit
    • AskUserQuestion

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    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

Rfc Impl Generator loads about 1.1k tokens when it runs, and up to ~4.2k if it reads all its reference files. Until then it costs about 79 tokens; SKILL.md has 561 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~79
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~4.2k

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 SepineTam/mcp-for-stata at commit d339615, republished under its AGPL-3.0 licence (© SepineTam). 561 words, ~1,094 tokens.

Download SKILL.mdSave it as .claude/skills/rfc-impl-generator/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.
name
rfc-impl-generator
description
Generate RFC and IMPL documents from a user-provided feature/fix description. Use when the user says something like "I want to add a feature with codex", "Implement this", "Write an RFC for...", or provides a short idea that needs to be formalized into the ai-driven/rfc + ai-driven/impl pipeline.
allowed-tools
Read, Grep, Write, Edit, AskUserQuestion

RFC/IMPL Document Generator

Convert a user's feature or fix idea into a paired RFC (design document for humans) and IMPL (implementation prompt for AI) in the ai-driven/ directory.

When to Use

  • User says "I want to add X feature"
  • User describes a bug fix or improvement
  • User says "write an RFC for..."
  • User gives a short idea that needs formalization before coding

Workflow

Step 1. Receive the User's Description

The user provides a short description of what they want. This could be a sentence, a paragraph, or a reference to a GitHub issue.

Step 2. Assess Information Completeness

Determine if the description is sufficient to write a meaningful RFC and IMPL. Ask yourself:

  • Do I understand what problem this solves?
  • Do I understand what the user expects to happen after the change?
  • Do I understand when/where the user would use this?
  • Do I know the scope (what's in, what's out)?

If any of these are unclear, proceed to Step 3. If all are clear, jump to Step 4.

Step 3. Ask Clarifying Questions (if needed)

Use AskUserQuestion to gather missing information. Focus on expected outcomes and user experience, NOT technical implementation details.

Good questions (ask these):

  • "What should the user see or experience after this change?"
  • "When would someone use this? Can you walk through a concrete scenario?"
  • "What problem does this solve for you?"
  • "How important is this compared to other features you're considering?"

Bad questions (avoid these):

  • "Should this be a new parameter or a config option?"
  • "Do you want to use threading or multiprocessing?"
  • "What data structure should we use?"
  • "Should we cache this in Redis or a file?"

Rules for asking:

  • Ask 1-2 questions at a time
  • After each answer, re-assess if you have enough information
  • If still unclear, ask follow-up questions
  • Stop once you can write a coherent RFC and IMPL
Step 4. Generate the Documents

Once you have sufficient information, generate both documents.

Show full SKILL.md (242 more words)Show less
4.1 Determine the filename

Use the naming convention from .claude/rules/ai-driven-coding.md:

  • If there's a GitHub issue: {issue-number}-{short-name}.md
  • If no issue: {prefix}-{short-name}.md (prefix = feat-, fix-, refactor-, perf-, docs-)

short-name should be 2-4 English words, kebab-case.

Before writing, ask the user to confirm the filename if you're unsure about the issue number or prefix.

4.2 Write the RFC

Create ai-driven/rfc/{filename}. Read references/rfc-template.md for the exact structure and copy it as the starting scaffold.

RFC rules:

  • Written in the user's natural language
  • No concrete code (no diffs, no real implementation)
  • No "future work" sections
  • Focus on "what" and "why", not "how"
4.3 Write the IMPL

Create ai-driven/impl/{filename}. Read references/impl-template.md for the exact structure and copy it as the starting scaffold.

IMPL rules:

  • Written in English (AI-facing)
  • Pseudocode only, no real runnable code
  • Use "suggested", "recommended", "consider" — leave room for AI judgment
  • Must end with a Checking List
Step 5. Present to User

After generating both files:

  1. Show the user the two file paths
  2. Summarize what was written in 2-3 sentences
  3. Ask if they want to review or modify anything before handing off to a Coding Agent

Reference Files

NameLocationDescription
RFC Templatereferences/rfc-template.mdEmpty RFC scaffold to copy for new design docs
IMPL Templatereferences/impl-template.mdEmpty IMPL scaffold to copy for new AI prompts
RFC Examplereferences/rfc-example.mdFilled RFC for issue #60 (exit-clear-unix)
IMPL Examplereferences/impl-example.mdFilled IMPL for issue #60
Workflow Examplereferences/workflow-example.mdFull walkthrough from vague idea to RFC+IMPL pair

© SepineTam, AGPL-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

SKILL.md and 5 other files (references) in .claude/skills/rfc-impl-generator of SepineTam/mcp-for-stata.

  • SKILL.md
  • references/impl-example.md
  • references/impl-template.md
  • references/rfc-example.md
  • references/rfc-template.md
  • references/workflow-example.md

Open the folder on GitHubat commit d339615

Compare with similar skills

Rfc Impl Generator 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.

Rfc Impl Generator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Rfc Impl Generator this skillSepineTam/mcp-for-stata264—~1.1kAutomated safety check: PassAGPL-3.0
Fin Data Acquisitioncsmar432/finai-research109—~2kAutomated safety check: PassMIT
Fin Generate Ideacsmar432/finai-research109—~2.5kAutomated safety check: PassMIT
Fin Idea Discoverycsmar432/finai-research109—~2.7kAutomated safety check: PassMIT
Fin Novelty Checkcsmar432/finai-research109—~1.4kAutomated safety check: PassMIT
Stata Replicationpedrohcgs/claude-code-my-workflow1.7k—~2.1kAutomated safety check: NotesMIT

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Questions about Rfc Impl Generator

What does Rfc Impl Generator do?

Generate RFC and IMPL documents from a user-provided feature/fix description. Rfc Impl Generator is an agent skill from SepineTam/mcp-for-stata. Generate RFC and IMPL documents from a user-provided feature/fix description.

When should I use Rfc Impl Generator?

Rfc Impl Generator fits situations like: the user says something like I want to add a feature with codex; write an RFC for..; provides a short idea that needs to be formalized into the ai-driven/rfc + ai-driven/impl pipeline.

How do I install Rfc Impl Generator in Claude Code?

Run `npx skills add SepineTam/mcp-for-stata --skill rfc-impl-generator -a claude-code`. Or copy the skill folder (.claude/skills/rfc-impl-generator in SepineTam/mcp-for-stata) into .claude/skills/rfc-impl-generator in your project. Claude Code loads it when a task matches its description.

How do I install Rfc Impl Generator in Codex?

Run `npx skills add SepineTam/mcp-for-stata --skill rfc-impl-generator -a codex`. Or copy the skill folder (.claude/skills/rfc-impl-generator in SepineTam/mcp-for-stata) into .agents/skills/rfc-impl-generator in your project. Codex loads it when a task matches its description.

Can I use Rfc Impl Generator 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 SepineTam/mcp-for-stata --skill rfc-impl-generator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rfc-impl-generator, .gemini/skills/rfc-impl-generator, .github/skills/rfc-impl-generator and .opencode/skills/rfc-impl-generator in your project.

What does Rfc Impl Generator need to run?

SKILL.md names no scripts, command-line tools or credentials: Rfc Impl Generator is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Write, Edit, AskUserQuestion.

Does Rfc Impl Generator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Rfc Impl Generator 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 Rfc Impl Generator use?

Rfc Impl Generator is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Rfc Impl Generator use?

About 1.1k tokens (SKILL.md is roughly 4.4k 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 3.1k tokens, read only when the agent opens those files.

What are the alternatives to Rfc Impl Generator?

Skills that share tags, products or a category with Rfc Impl Generator: Fin Data Acquisition (csmar432/finai-research, 109 stars), Fin Generate Idea (csmar432/finai-research, 109 stars), Fin Idea Discovery (csmar432/finai-research, 109 stars) and Fin Novelty Check (csmar432/finai-research, 109 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Rfc Impl Generator?

SepineTam (a GitHub user) maintains it in SepineTam/mcp-for-stata, which has 264 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 6, 2026.

Source: SepineTam/mcp-for-stata on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.