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Agent skill

Ultra Think

by coco-research in coco-research/coco

A skill your agent uses when facing architectural decisions, complex trade-offs, strategic technology choices, or scaling and migration questions that deserve more than a quick answer.

Custom licenceAuto-check passed

Install Ultra Think

skills CLI
$ npx skills add coco-research/coco --skill ultra-think -a claude-code

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

GitHub CLI
$ gh skill install coco-research/coco ultra-think --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/coco-research/coco.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/ultra-think .claude/skills/ultra-think && 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
ultra-think
GitHub stars
482
Token cost
~1.7k tokens
SKILL.md length
650 words
Files
1
Skills in repo
57
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses when facing architectural decisions, complex trade-offs, strategic technology choices, or scaling and migration questions that deserve more than a quick answer.

  • Works in 8 steps: Parse the Problem → Multi-Dimensional Analysis → Generate Multiple Solutions → …
  • Facing architectural decisions
  • SKILL.md covers When This Skill Is Activated, Step 1: Parse the Problem, Step 2: Multi-Dimensional… and Step 3: Generate Multiple…, plus 7 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Ultra Think is an agent skill from coco-research/coco. Use when facing architectural decisions, complex trade-offs, strategic technology choices, or scaling and migration questions that deserve more than a quick answer. Lays out options with trade-offs, then a recommendation.

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: CoCo Super Intelligence is the orchestration layer that turns Claude Code, Cursor, or Codex into an engineering department: a routed advisory board, 226 skills, 386 commands…

When your agent uses it

  • Facing architectural decisions
  • Complex trade-offs
  • Strategic technology choices
  • Scaling and migration questions that deserve more than a quick answer

Example prompts

  • “/ultra-think”

Workflow steps

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

  1. Parse the Problem
  2. Multi-Dimensional Analysis
  3. Generate Multiple Solutions
  4. Deep Dive on Top Candidates
  5. Cross-Domain Thinking
  6. Challenge and Stress-Test
  7. Synthesize and Recommend
  8. Meta-Reflection

What it can do on your machine

Read from SKILL.md and the folder at commit 2ddb559. 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

    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

Ultra Think loads about 1.7k tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 650 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~58
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

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 650 words (~1,683 tokens).

“Deep, multi-dimensional analysis and problem solving. Activates systematic reasoning across technical, business, user, and system perspectives. Generates multiple solutions with trade-offs, then synthesizes into a clear recommendation.”

— opening of SKILL.md by coco-research, Custom licence
name
ultra-think
domain
foundational
supports
claude-code, cursor, codex, generic
version
0.1.0

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/ultra-think of coco-research/coco.

Open the folder on GitHubat commit 2ddb559

Compare with similar skills

Ultra Think 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.

Ultra Think compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Ultra Think this skillcoco-research/coco482—~1.7kAutomated safety check: PassCustom licence
System Architecture DesignerJeffallan/claude-skills12k—~1.2kAutomated safety check: PassMIT
Architecture Patternswshobson/agents40k—~2kAutomated safety check: PassMIT
Android Clean Architectureaffaan-m/ECC275k4 repos~2.2kAutomated safety check: PassMIT
Google Cloud Solution Architecturegoogle/skills21k—~3.5kAutomated safety check: PassApache-2.0
Architecture Patternsdavila7/claude-code-templates32k4 repos~483Automated safety check: PassMIT

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Questions about Ultra Think

What does Ultra Think do?

A skill your agent uses when facing architectural decisions, complex trade-offs, strategic technology choices, or scaling and migration questions that deserve more than a quick answer. Ultra Think is an agent skill from coco-research/coco. Use when facing architectural decisions, complex trade-offs, strategic technology choices, or scaling and migration questions that deserve more than a quick answer.

When should I use Ultra Think?

Ultra Think fits situations like: facing architectural decisions; complex trade-offs; strategic technology choices; scaling and migration questions that deserve more than a quick answer.

How do I install Ultra Think in Claude Code?

Run `npx skills add coco-research/coco --skill ultra-think -a claude-code`. Or copy the skill folder (skills/ultra-think in coco-research/coco) into .claude/skills/ultra-think in your project. Claude Code loads it when a task matches its description.

How do I install Ultra Think in Codex?

Run `npx skills add coco-research/coco --skill ultra-think -a codex`. Or copy the skill folder (skills/ultra-think in coco-research/coco) into .agents/skills/ultra-think in your project. Codex loads it when a task matches its description.

Can I use Ultra Think 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 coco-research/coco --skill ultra-think -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ultra-think, .gemini/skills/ultra-think, .github/skills/ultra-think and .opencode/skills/ultra-think in your project.

What does Ultra Think need to run?

SKILL.md names no scripts, command-line tools or credentials: Ultra Think is instructions for the agent only.

Does Ultra Think 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 Ultra Think 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 Ultra Think use?

Ultra Think 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 Ultra Think use?

About 1.7k tokens (SKILL.md is roughly 6.7k 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 Ultra Think?

Skills that share tags, products or a category with Ultra Think: System Architecture Designer (Jeffallan/claude-skills, 12k stars), Architecture Patterns (wshobson/agents, 40k stars), Android Clean Architecture (affaan-m/ECC, 275k stars) and Google Cloud Solution Architecture (google/skills, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Ultra Think?

coco-research (a GitHub user) maintains it in coco-research/coco, which has 482 GitHub stars. The repository holds 57 skills in this directory. The repository was last updated on October 8, 2026.

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