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Agent skill

Dev Cancel

by evolution-foundation in evolution-foundation/evo-nexus

Cleanly stop an active engineering layer flow (dev-autopilot, dev-deep-interview, dev-plan) and report what was completed.

Custom licenceAuto-check passed

Install Dev Cancel

skills CLI
$ npx skills add evolution-foundation/evo-nexus --skill dev-cancel -a claude-code

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

GitHub CLI
$ gh skill install evolution-foundation/evo-nexus dev-cancel --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/evolution-foundation/evo-nexus.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/dev-cancel .claude/skills/dev-cancel && 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
dev-cancel
GitHub stars
544
Token cost
~879 tokens
SKILL.md length
321 words
Files
1
Skills in repo
117
Repo updated
First seen
Licence
Custom licence

At a glance

Cleanly stop an active engineering layer flow (dev-autopilot, dev-deep-interview, dev-plan) and report what was completed.

  • Works in 3 steps: Detect Active Flow → Stop the Flow → Generate Cancel Report
  • The user says cancel
  • SKILL.md covers Use When, Do Not Use When, Goal and Workflow, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Dev Cancel is an agent skill from evolution-foundation/evo-nexus. Cleanly stop an active engineering layer flow (dev-autopilot, dev-deep-interview, dev-plan) and report what was completed. Use when the user says "cancel", "stop", "abort", "cancelomc", or wants to exit a multi-phase dev workflow.

Its SKILL.md is about 880 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: The open source operating system for AI-powered businesses.

When your agent uses it

  • The user says cancel
  • Wants to exit a multi-phase dev workflow

Example prompts

  • “cancel”
  • “cancelomc”
  • “/dev-cancel”

Workflow steps

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

  1. Detect Active Flow
  2. Stop the Flow
  3. Generate Cancel Report

What it can do on your machine

Read from SKILL.md and the folder at commit 7f5dd76. 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 markdown).

    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

Dev Cancel loads about 879 tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 321 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~60
When it runs · the whole SKILL.md, loaded when a task matches
~879

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 321 words (~879 tokens).

“Derived from oh-my-claudecode (MIT, Yeachan Heo). Adapted for the EvoNexus Engineering Layer — simplified, runtime-free version.”

— opening of SKILL.md by evolution-foundation, Custom licence
name
dev-cancel

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/dev-cancel of evolution-foundation/evo-nexus.

Open the folder on GitHubat commit 7f5dd76

Compare with similar skills

Dev Cancel 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.

Dev Cancel compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Dev Cancel this skillevolution-foundation/evo-nexus544—~879Automated safety check: PassCustom licence
OMC Mode CancellationYeachan-Heo/oh-my-claudecode40k—~4.6kAutomated safety check: PassMIT
AutopilotYeachan-Heo/oh-my-claudecode40k1 repos~4.4kAutomated safety check: PassMIT
Android Clean Architectureaffaan-m/ECC274k4 repos~2.2kAutomated safety check: PassMIT
CancelQ00/ouroboros6.2k—~983Automated safety check: PassMIT
Containing Active Breachmukul975/Anthropic-Cybersecurity-Skills34k—~2.7kAutomated safety check: PassApache-2.0

Similar skills

  • OMC Mode Cancellation

    Yeachan-Heo/oh-my-claudecode

    Detects and gracefully cancels whichever OMC mode, autopilot, ralph, swarm, pipeline, or team, is currently active, then clears its state.

    40k GitHub stars~4.6k tokensUpdated today
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  • Autopilot

    Yeachan-Heo/oh-my-claudecode

    Takes a short product idea through requirements, design, planning, parallel implementation, QA cycles and multi-reviewer validation to produce working code.

    40k GitHub starsUsed in 1 repo~4.4k tokens
    Agent WorkflowsAuto-check passed

  • Android Clean Architecture

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    Applies Clean Architecture to Android and Kotlin Multiplatform projects: module layout, dependency rules, UseCases, Repositories and data layer patterns.

    274k GitHub starsUsed in 4 repos~2.2k tokens
    DevelopmentAuto-check passed

  • Cancel

    Q00/ouroboros

    Cancel stuck or orphaned executions

    6.2k GitHub stars~983 tokensUpdated today
    Agent WorkflowsAuto-check passed

  • Containing Active Breach

    mukul975/Anthropic-Cybersecurity-Skills

    Executes containment strategies to stop active adversary operations and prevent lateral movement during a confirmed security breach.

    34k GitHub stars~2.7k tokensUpdated 1 mo ago
    SecurityAuto-check passed

  • OMG Mode Canceller

    zereight/gitlab-mcp

    Detects which autonomous OMG mode is currently active - Autopilot, Ralph, Ultrawork, UltraQA, Team or Self-Improve - and shuts it down cleanly.

    2k GitHub starsUsed in 1 repo~690 tokens
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  • Postgres Query Client

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  • Redis Inspector

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Questions about Dev Cancel

What does Dev Cancel do?

Cleanly stop an active engineering layer flow (dev-autopilot, dev-deep-interview, dev-plan) and report what was completed. Dev Cancel is an agent skill from evolution-foundation/evo-nexus. Cleanly stop an active engineering layer flow (dev-autopilot, dev-deep-interview, dev-plan) and report what was completed.

When should I use Dev Cancel?

Dev Cancel fits situations like: the user says cancel; wants to exit a multi-phase dev workflow.

How do I install Dev Cancel in Claude Code?

Run `npx skills add evolution-foundation/evo-nexus --skill dev-cancel -a claude-code`. Or copy the skill folder (.claude/skills/dev-cancel in evolution-foundation/evo-nexus) into .claude/skills/dev-cancel in your project. Claude Code loads it when a task matches its description.

How do I install Dev Cancel in Codex?

Run `npx skills add evolution-foundation/evo-nexus --skill dev-cancel -a codex`. Or copy the skill folder (.claude/skills/dev-cancel in evolution-foundation/evo-nexus) into .agents/skills/dev-cancel in your project. Codex loads it when a task matches its description.

Can I use Dev Cancel 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 evolution-foundation/evo-nexus --skill dev-cancel -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dev-cancel, .gemini/skills/dev-cancel, .github/skills/dev-cancel and .opencode/skills/dev-cancel in your project.

What does Dev Cancel need to run?

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

Does Dev Cancel 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 Dev Cancel 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 Dev Cancel use?

Dev Cancel 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 Dev Cancel use?

About 879 tokens (SKILL.md is roughly 3.5k 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 Dev Cancel?

Skills that share tags, products or a category with Dev Cancel: OMC Mode Cancellation (Yeachan-Heo/oh-my-claudecode, 40k stars), Autopilot (Yeachan-Heo/oh-my-claudecode, 40k stars), Android Clean Architecture (affaan-m/ECC, 274k stars) and Cancel (Q00/ouroboros, 6.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Dev Cancel?

evolution-foundation (a GitHub organization) maintains it in evolution-foundation/evo-nexus, which has 544 GitHub stars. The repository holds 117 skills in this directory. The repository was last updated on May 13, 2026.

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