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Agent skill

Jumbo Add Guideline

by jumbocontext in jumbocontext/cli

Use liberally when the user expresses a preference about how work should be done — coding style, process, testing approach, communication style.

AGPL-3.0Auto-check passedAgent Workflows

Install Jumbo Add Guideline

skills CLI
$ npx skills add jumbocontext/cli --skill jumbo-add-guideline -a claude-code

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

GitHub CLI
$ gh skill install jumbocontext/cli jumbo-add-guideline --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/jumbocontext/cli.git skills-src && mkdir -p .claude/skills && cp -r skills-src/assets/skills/jumbo-add-guideline .claude/skills/jumbo-add-guideline && 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
jumbo-add-guideline
GitHub stars
276
Token cost
~522 tokens
SKILL.md length
137 words
Files
1
Skills in repo
13
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Use liberally when the user expresses a preference about how work should be done — coding style, process, testing approach, communication style.

  • Expresses a preference about how work should be done — coding style
  • SKILL.md covers Before Adding, Command Syntax, Bad Example and Good Example
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Testing approach

What it does

Jumbo Add Guideline is an agent skill from jumbocontext/cli. Use liberally when the user expresses a preference about how work should be done — coding style, process, testing approach, communication style. Captures the guideline so future sessions follow it without being told again.

Its SKILL.md is about 520 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 Agent Workflows. The repository describes itself as: Memory and Context Orchestration for Coding Agents. The licence is AGPL-3.0.

When your agent uses it

  • Expresses a preference about how work should be done — coding style
  • Testing approach
  • Communication style

Example prompts

  • “/jumbo-add-guideline”

What it can do on your machine

Read from SKILL.md and the folder at commit a02a339. 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 (its code samples are bash).

    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

Jumbo Add Guideline loads about 522 tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 137 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~61
When it runs · the whole SKILL.md, loaded when a task matches
~522

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 jumbocontext/cli at commit a02a339, republished under its AGPL-3.0 licence (© jumbocontext). 137 words, ~522 tokens.

Download SKILL.mdSave it as .claude/skills/jumbo-add-guideline/SKILL.md (or your agent's skills folder).
name
jumbo-add-guideline
description
Use liberally when the user expresses a preference about how work should be done — coding style, process, testing approach, communication style. Captures the guideline so future sessions follow it without being told again.

Add Guideline

Register a guideline with Jumbo when the user states a preference about how work should be done. Guidelines shape agent behavior across all future sessions.

Important: Guidelines must be generally applicable to the project. Do not word them for a specific use case, goal, or task. A guideline that only applies to one situation belongs in a goal's criteria, not in the guideline registry.

Before Adding

Check for an existing guideline to avoid duplication. Consider removing, or updating, a previously registered guideline before registering a new one.

Use the search subcommand to locate previously registered guidelines:

bash
jumbo guidelines search -q <query>

Command Syntax

bash
jumbo guideline add \
  --category "<testing|codingStyle|process|communication|documentation|security|performance|other>" \
  --title "<Guideline title>" \
  --description "<What to do and when>" \
  --rationale "<Why this matters>"

Bad Example

bash
jumbo guideline add \
  --category codingStyle \
  --title "Use arrow functions in the auth module" \
  --description "All functions in src/auth/ should be arrow functions" \
  --rationale "Consistency in auth code"

Too narrow — scoped to one module and one task. This is a goal criterion, not a project guideline.

Good Example

bash
jumbo guideline add \
  --category codingStyle \
  --title "Prefer arrow functions for non-method declarations" \
  --description "Use arrow functions for callbacks, inline handlers, and standalone function expressions. Use function declarations for exported named functions and class methods." \
  --rationale "Consistent lexical scoping and concise syntax across the codebase"

Applies project-wide. States when to use and when not to use. Rationale explains the benefit.

© jumbocontext, 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

Just SKILL.md in assets/skills/jumbo-add-guideline of jumbocontext/cli.

Open the folder on GitHubat commit a02a339

Compare with similar skills

Jumbo Add Guideline 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.

Jumbo Add Guideline compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Jumbo Add Guideline this skilljumbocontext/cli276—~522Automated safety check: PassAGPL-3.0
MCP Server Builderanthropics/skills180k63 repos~2.3kAutomated safety check: PassApache-2.0
Hook Development for Claude Code Pluginsanthropics/claude-plugins-official38k10 repos~4.1kAutomated safety check: NotesApache-2.0
Using Superpowersfarm-fe/farm5.6k35 repos~1.4kAutomated safety check: PassMIT
Executing Plans Inlineobra/superpowers297k2 repos~5.1kAutomated safety check: PassMIT
Skill CreatorAzure/azqr79689 repos~8.2kAutomated safety check: PassApache-2.0

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  • Reject Jumbo Goal

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Categories

Questions about Jumbo Add Guideline

What does Jumbo Add Guideline do?

Use liberally when the user expresses a preference about how work should be done — coding style, process, testing approach, communication style. Jumbo Add Guideline is an agent skill from jumbocontext/cli. Use liberally when the user expresses a preference about how work should be done — coding style, process, testing approach, communication style.

When should I use Jumbo Add Guideline?

Jumbo Add Guideline fits situations like: expresses a preference about how work should be done — coding style; testing approach; communication style.

How do I install Jumbo Add Guideline in Claude Code?

Run `npx skills add jumbocontext/cli --skill jumbo-add-guideline -a claude-code`. Or copy the skill folder (assets/skills/jumbo-add-guideline in jumbocontext/cli) into .claude/skills/jumbo-add-guideline in your project. Claude Code loads it when a task matches its description.

How do I install Jumbo Add Guideline in Codex?

Run `npx skills add jumbocontext/cli --skill jumbo-add-guideline -a codex`. Or copy the skill folder (assets/skills/jumbo-add-guideline in jumbocontext/cli) into .agents/skills/jumbo-add-guideline in your project. Codex loads it when a task matches its description.

Can I use Jumbo Add Guideline 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 jumbocontext/cli --skill jumbo-add-guideline -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/jumbo-add-guideline, .gemini/skills/jumbo-add-guideline, .github/skills/jumbo-add-guideline and .opencode/skills/jumbo-add-guideline in your project.

What does Jumbo Add Guideline need to run?

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

Does Jumbo Add Guideline 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 Jumbo Add Guideline 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 Jumbo Add Guideline use?

Jumbo Add Guideline 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 Jumbo Add Guideline use?

About 522 tokens (SKILL.md is roughly 2.1k 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 Jumbo Add Guideline?

Skills that share tags, products or a category with Jumbo Add Guideline: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Jumbo Add Guideline?

jumbocontext (a GitHub organization) maintains it in jumbocontext/cli, which has 276 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on September 23, 2026.

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