Learn-skills.dev taskfile

Build, debug, and refactor `Taskfile.yml` or `Taskfile.yaml` automation using go-task and the `task` CLI. Use this skill whenever the user mentions Taskfile, go-task, `task`, task dependencies, includes, variables, templates, `sources` or `generates` caching, taskfiles split across directories, or migrating Makefiles or npm scripts to Task.

install
source · Clone the upstream repo
git clone https://github.com/NeverSight/learn-skills.dev
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/NeverSight/learn-skills.dev "$T" && mkdir -p ~/.claude/skills && cp -r "$T/data/skills-md/aaronflorey/agent-skills/taskfile" ~/.claude/skills/neversight-learn-skills-dev-taskfile && rm -rf "$T"
manifest: data/skills-md/aaronflorey/agent-skills/taskfile/SKILL.md
source content

Taskfile Skill

Use this skill to create production-grade

Taskfile.yml
automation for local dev, CI, and monorepos.

Task is a YAML task runner with:

  • dependency graphs (
    deps
    )
  • templating via Go
    text/template
    + slim-sprig functions
  • incremental execution (
    sources
    ,
    generates
    ,
    status
    ,
    method
    )
  • task composition via
    includes

What to do first

  1. Identify the user's goal (dev workflow, build, test, release, codegen, deploy).
  2. Inspect existing
    Taskfile.yml
    and project scripts (
    package.json
    , Makefile, CI configs).
  3. Decide whether to:
    • add tasks to existing Taskfile,
    • split into included Taskfiles,
    • or bootstrap a fresh Taskfile.
  4. Prefer small, composable tasks with clear
    desc
    and predictable variables.

Core implementation rules

  • Keep root schema on
    version: '3'
    unless user needs stricter semver gating.
  • Use
    desc
    on user-facing tasks so
    task --list
    is useful.
  • Use
    internal: true
    for helper tasks not meant for direct invocation.
  • Use
    deps
    for parallelizable prerequisites; use
    cmds: - task: ...
    for ordered execution.
  • Use
    requires.vars
    for mandatory inputs and enum constraints for safety.
  • Use
    sources
    +
    generates
    (or
    status
    ) to skip unnecessary work.
  • Use
    preconditions
    for hard-fail checks (missing tools/files/env).
  • Use
    if
    to conditionally skip tasks without failing.
  • Use task-level
    dir
    when running in subfolders/services.

Output expectations

When writing or editing Taskfiles:

  • return valid YAML that can run as-is;
  • include concise comments only for non-obvious behavior;
  • include at least one
    default
    or clearly documented entrypoint task when useful;
  • include practical examples of calling tasks (with variables and
    --
    CLI args) in your response.

Routing guide

  • Schema keys and valid shapes:
    references/schema-and-model.md
  • Templating and special variables:
    references/templating-and-vars.md
  • Execution model, caching, and reliability:
    references/execution-patterns.md
  • CLI flags, debug flow, and troubleshooting:
    references/cli-and-debugging.md
  • Ready-to-copy Taskfiles:
    examples/basic-taskfile.yml
    ,
    examples/monorepo-taskfile.yml

High-value patterns to prefer

1) Safe deploy tasks

  • prompt
    for confirmation
  • requires.vars
    for environment selection
  • preconditions
    for required secrets/tools

2) Fast local dev loops

  • a top-level
    dev
    task that fans out to service tasks
  • watch
    where appropriate
  • clear task aliases for common commands

3) Incremental builds/codegen

  • sources
    and
    generates
    for deterministic re-runs
  • method: checksum
    for content-sensitive workflows
  • method: timestamp
    only when filesystem mtime behavior is desired

4) Monorepo composition

  • includes
    with namespaces
  • flatten
    only when naming collisions are controlled
  • excludes
    for clashing task names

Anti-patterns to avoid

  • Giant single tasks that hide multiple concerns.
  • Relying on shell state shared between separate commands.
  • Omitting
    desc
    on user-facing tasks.
  • Using
    --force
    routinely instead of modeling
    sources
    /
    status
    correctly.
  • Putting sensitive values directly in Taskfiles when env/dotenv is more appropriate.

Minimal quality checklist

Before finishing, verify:

  • task --list
    is readable and meaningful.
  • Required variables are enforced (
    requires
    ).
  • Tasks run from expected directories (
    dir
    ,
    USER_WORKING_DIR
    when needed).
  • Incremental tasks have correct invalidation (
    sources
    /
    generates
    /
    status
    ).
  • Task names and namespaces are consistent and predictable.