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Agent skill

Jumbo Add Decision

by jumbocontext in jumbocontext/cli

Use liberally when you make an architectural choice, select a technology, or reject an alternative.

AGPL-3.0Auto-check passedAgent Workflows

Install Jumbo Add Decision

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

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

GitHub CLI
$ gh skill install jumbocontext/cli jumbo-add-decision --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-decision .claude/skills/jumbo-add-decision && 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-decision
GitHub stars
276
Token cost
~540 tokens
SKILL.md length
143 words
Files
1
Skills in repo
13
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Use liberally when you make an architectural choice, select a technology, or reject an alternative.

  • Agent Workflows work in your project
  • SKILL.md covers Before Adding, Command Syntax, Bad Example and Good Example
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Jumbo Add Decision is an agent skill from jumbocontext/cli. Use liberally when you make an architectural choice, select a technology, or reject an alternative. Records the decision so future sessions understand why the codebase looks the way it does.

Its SKILL.md is about 540 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

  • Agent Workflows work in your project

Example prompts

  • “/jumbo-add-decision”

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 Decision loads about 540 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 143 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~52
When it runs · the whole SKILL.md, loaded when a task matches
~540

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). 143 words, ~540 tokens.

Download SKILL.mdSave it as .claude/skills/jumbo-add-decision/SKILL.md (or your agent's skills folder).
name
jumbo-add-decision
description
Use liberally when you make an architectural choice, select a technology, or reject an alternative. Records the decision so future sessions understand why the codebase looks the way it does.

Add Decision

Register an architectural decision with Jumbo when you choose one approach over alternatives. Decisions explain why the codebase looks the way it does — without them, future agents may reverse your choices or repeat your analysis.

Before Adding

Check for an existing decision to avoid duplication. Consider reversing, updating, or superseding a previously registered decision before registering a new one.

Use the search subcommand to locate previously registered decisions:

bash
jumbo decisions search -q <query>

Command Syntax

bash
jumbo decision add \
  --title "<Decision title>" \
  --context "<Problem statement and background>" \
  --rationale "<Why this choice was made>" \
  --alternative "<Rejected option>" \
  --consequences "<Trade-offs accepted>"

Bad Example

bash
jumbo decision add \
  --title "Use events" \
  --context "Need to track changes"

Title is too vague to be useful. Missing rationale means a future agent has no basis for understanding the choice. Missing alternatives means they cannot evaluate whether the context has changed.

Good Example

bash
jumbo decision add \
  --title "Use event sourcing over state-based persistence for domain aggregates" \
  --context "Domain aggregates need audit history and the ability to rebuild state at any point in time" \
  --rationale "Event sourcing provides a complete audit trail and enables temporal queries without additional infrastructure" \
  --alternative "State-based persistence with a separate audit log table" \
  --consequences "Requires projection rebuilding for read models; increases storage for high-frequency aggregates"

Title names both the chosen and rejected pattern. Context explains the problem. Rationale connects the choice to the problem. Alternatives and consequences give future agents the information they need to judge whether the decision still holds.

© 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-decision of jumbocontext/cli.

Open the folder on GitHubat commit a02a339

Compare with similar skills

Jumbo Add Decision 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 Decision compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Jumbo Add Decision this skilljumbocontext/cli276—~540Automated 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/azqr79589 repos~8.2kAutomated safety check: PassApache-2.0

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More from jumbocontext/cli

All 13 skills in this repo

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  • Define Jumbo Goals

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  • Jumbo Add Guideline

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

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  • Refine Jumbo Goals

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    A skill your agent uses when Jumbo goals need refinement before implementation.

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  • Reject Jumbo Goal

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Categories

Questions about Jumbo Add Decision

What does Jumbo Add Decision do?

Use liberally when you make an architectural choice, select a technology, or reject an alternative. Jumbo Add Decision is an agent skill from jumbocontext/cli. Use liberally when you make an architectural choice, select a technology, or reject an alternative.

When should I use Jumbo Add Decision?

Jumbo Add Decision fits situations like: agent Workflows work in your project.

How do I install Jumbo Add Decision in Claude Code?

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

How do I install Jumbo Add Decision in Codex?

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

Can I use Jumbo Add Decision 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-decision -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-decision, .gemini/skills/jumbo-add-decision, .github/skills/jumbo-add-decision and .opencode/skills/jumbo-add-decision in your project.

What does Jumbo Add Decision need to run?

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

Does Jumbo Add Decision 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 Decision 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 Decision use?

Jumbo Add Decision 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 Decision use?

About 540 tokens (SKILL.md is roughly 2.2k 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 Decision?

Skills that share tags, products or a category with Jumbo Add Decision: 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 Decision?

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.