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Agent skill

Start Design

by Log2n-io in Log2n-io/Typhon

Start design for a GitHub issue - creates design doc from research/ideas, updates status to Todo

Custom licenceAuto-check passedDevelopment

Install Start Design

skills CLI
$ npx skills add Log2n-io/Typhon --skill start-design -a claude-code

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

GitHub CLI
$ gh skill install Log2n-io/Typhon start-design --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/Log2n-io/Typhon.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/start-design .claude/skills/start-design && 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
start-design
GitHub stars
250
Token cost
~3.9k tokens
SKILL.md length
1,422 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
Custom licence

At a glance

Start design for a GitHub issue - creates design doc from research/ideas, updates status to Todo

  • Works in 8 steps: Fetch Issue Details → Status Guard → Check for Existing Source Documents → …
  • Tasks that involve Architecture decision records
  • SKILL.md covers Input, Help, Handling No Issue Number and Inline Issue Creation, plus 3 more sections
  • Calls gh and python3

What it does

Start Design is an agent skill from Log2n-io/Typhon. Start design for a GitHub issue - creates design doc from research/ideas, updates status to Todo

Its SKILL.md is about 3.9k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Architecture decision records and Hypothesis generation. It works with GitHub. The repository describes itself as: A microsecond-latency ACID database engine with a native Entity-Component-System data model, built for real-time systems.

When your agent uses it

  • Tasks that involve Architecture decision records
  • Tasks that involve Hypothesis generation

Example prompts

  • “/start-design”

Requirements

  • Python 3

Workflow steps

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

  1. Fetch Issue Details
  2. Status Guard
  3. Check for Existing Source Documents
  4. Determine Design Doc Location
  5. Create Design Document
  6. Handle Source Documents
  7. Update GitHub Issue
  8. Report Summary

What it can do on your machine

Read from SKILL.md and the folder at commit da2018e. 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:

    • gh
    • python3

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

  • Network

    No URLs in SKILL.md. Its commands use gh, which can reach the network depending on how they are called.

    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

Start Design loads about 3.9k tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 1,422 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~27
When it runs · the whole SKILL.md, loaded when a task matches
~3.9k

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 1,422 words (~3,867 tokens).

“Transition an issue into the Design phase by creating a design document, seeded from existing research (or ideas), and updating the project board status to "Todo".”

— opening of SKILL.md by Log2n-io, Custom licence
name
start-design
argument-hint
[issue number or title] [--deep]

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/start-design of Log2n-io/Typhon.

Open the folder on GitHubat commit da2018e

Compare with similar skills

Start Design 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.

Start Design compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Start Design this skillLog2n-io/Typhon250—~3.9kAutomated safety check: PassCustom licence
Design Doc MermaidSpillwaveSolutions/design-doc-mermaid1751 repos~5.6kAutomated safety check: PassNone
Review GitHub PRNVIDIA/OpenShell15k—~1.7kAutomated safety check: PassApache-2.0
Development Workflowrunceel/ReactiveProperty944—~1.4kAutomated safety check: PassMIT
Opencharttryopendata/skills142—~11kAutomated safety check: PassMIT
Adr Cornerfullsend-ai/fullsend147—~654Automated safety check: PassApache-2.0

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More from Log2n-io/Typhon

All 17 skills in this repo

  • Benchmark

    Log2n-io/Typhon

    Run regression benchmarks, track results, and generate trend reports

    250 GitHub stars~1.9k tokensUpdated yesterday
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  • Complete Subtask

    Log2n-io/Typhon

    Complete a sub-issue of an umbrella issue - close it, check parent checkbox, update design doc

    250 GitHub stars~1.5k tokensUpdated yesterday
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  • Complete Task

    Log2n-io/Typhon

    Complete work on a GitHub issue - close issue, update artifacts, prompt for doc updates

    250 GitHub stars~2.1k tokensUpdated yesterday
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  • Coverage

    Log2n-io/Typhon

    Run code coverage analysis, track class-level results, and generate trend reports

    250 GitHub stars~787 tokensUpdated yesterday
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  • Create Issue

    Log2n-io/Typhon

    Create a GitHub issue and add it to the Typhon org project. An agent skill from Log2n-io/Typhon.

    250 GitHub stars~2.6k tokensUpdated yesterday
    Auto-check passed

  • Dev Status

    Log2n-io/Typhon

    Show current development status from GitHub Project. An agent skill from Log2n-io/Typhon.

    250 GitHub stars~874 tokensUpdated yesterday
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Works with

Categories

Questions about Start Design

What does Start Design do?

Start design for a GitHub issue - creates design doc from research/ideas, updates status to Todo. Start Design is an agent skill from Log2n-io/Typhon.

When should I use Start Design?

Start Design fits situations like: tasks that involve Architecture decision records; tasks that involve Hypothesis generation.

How do I install Start Design in Claude Code?

Run `npx skills add Log2n-io/Typhon --skill start-design -a claude-code`. Or copy the skill folder (.claude/skills/start-design in Log2n-io/Typhon) into .claude/skills/start-design in your project. Claude Code loads it when a task matches its description.

How do I install Start Design in Codex?

Run `npx skills add Log2n-io/Typhon --skill start-design -a codex`. Or copy the skill folder (.claude/skills/start-design in Log2n-io/Typhon) into .agents/skills/start-design in your project. Codex loads it when a task matches its description.

Can I use Start Design 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 Log2n-io/Typhon --skill start-design -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/start-design, .gemini/skills/start-design, .github/skills/start-design and .opencode/skills/start-design in your project.

What does Start Design need to run?

Going by SKILL.md and its folder, Start Design needs the command-line tools its instructions call (gh and python3). Our summary lists: Python 3.

Does Start Design access the network?

SKILL.md contains no URLs. Its commands use gh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Start Design 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 Start Design use?

Start Design 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 Start Design use?

About 3.9k tokens (SKILL.md is roughly 15k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Start Design?

Skills that share tags, products or a category with Start Design: Design Doc Mermaid (SpillwaveSolutions/design-doc-mermaid, 175 stars), Review GitHub PR (NVIDIA/OpenShell, 15k stars), Development Workflow (runceel/ReactiveProperty, 944 stars) and Openchart (tryopendata/skills, 142 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Start Design?

Log2n-io (a GitHub organization) maintains it in Log2n-io/Typhon, which has 250 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 7, 2026.

Source: Log2n-io/Typhon on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.