mise

name

mise

description

Guidance for mise (mise-en-place) as task runner, tool version manager, and package manager. Use when working with mise.toml, task definitions and dependency graphs (`mise run`, depends/run), `[task_config].includes` and DB/env/dotenvx/secrets/tools task-family splitting, tool/package centralization (npm:/pipx:), `mise upgrade` and `minimum_release_age`, Windows settings (`run_windows`, `config.windows.toml`), `mise skills add`, `mise bootstrap` and its config sections (`[bootstrap.packages]`, `[dotfiles]`, launchd/systemd units), `mise dotfiles apply`, or migrating a Brewfile to mise bootstrap. For `~/.apm` rollout work (apm.yml, lockfile, which APM task to run), coordinate with `apm-usage`. For Home Manager / Nix Flake dotfiles, use `nix-dotfiles`.

mise - Task Runner Configuration

Design, review, and fix mise.toml configurations: task dependency graphs, tool/package management, and workflow automation.

First Response Checklist

Classify the request into one mode and answer from that mode only:

1. Project-local repository mode — the user is editing a repository-owned mise.toml.
   • Prefer a single root mise.toml for small or medium task sets
   • For large repos, use [task_config].includes only when task families have clear owners (DB, env/dotenvx, secrets, infra, deploy, tools) — see references/task-family-splitting.md
   • Treat the repo's existing task names, workflow semantics, and source-of-truth rules as authoritative
2. User-global / dotfiles mode — the user is managing ~/.config/mise, personal toolchains, or mise skills add.
   • Split layouts are valid here: settings-only config.toml, environment files such as config.default.toml / config.ci.toml / config.windows.toml, shared task files via [task_config].includes — see references/task-config-includes.md
   • config.windows.toml and windows_default_*_shell_args usually belong here unless the repository explicitly vendors its own Windows shell policy

If the request mentions mise skills add, mise bootstrap, [dotfiles], personal/global setup, or ~/.config/mise, treat it as user-global. Otherwise default to project-local.

Repository Overrides

When the request targets a specific repository, read its local guidance and the actual mise.toml before falling back to generic advice:

• Prefer repo-local AGENTS.md, task docs, and current task names as authoritative
• Derive task meaning from the real run / depends graph, not from naming alone
• Repo-documented source-of-truth and generated-output rules override this skill's generic defaults
• If the repository has a dedicated workflow skill for its rollout model, use that skill for repo-specific routing

Core Rules

run vs depends

• run: WHAT this task does (imperative, executes serially)
• depends: WHAT must finish BEFORE (declarative, builds global DAG, enables parallelism)

[tasks.test]
description = "Run test suite"
depends = ["build", "lint"]  # build & lint run in parallel
run = "cargo test"

• Never call mise <task> inside run strings — use { task = "x" }
• Never put ordering logic in run that belongs in depends
• Keep >3 lines of shell out of run arrays; place long scripts in mise-tasks/ or scripts/
• Treat task TOML as an interface: keep its description, working directory, environment, dependencies, platform route, and one runner; move branching, cleanup, and command sequences into a named helper.
• Keep routine aggregate tasks non-destructive. Put reset, clean, prune, deploy, and in-place restore behind explicitly named tasks rather than including them in a generic update, check, or ci task.

Aggregation vs alias

• Aggregation tasks (check, lint, format) coordinate independent prerequisites — prefer depends-only
• alias = ["b"] is optional CLI sugar; a task named deploy or format is not an alias unless it declares alias = [...]

Configuration structure

Section order: [settings] → [env] → [tools] → [tasks]. Within [tasks]: individual commands → aggregation tasks → aliases/meta-tasks, with separator comments (# === Commands ===).

Naming

• Single-task commands: action-first names (format, validate, prepare:catalog)
• Orchestration workflows: workflow names (check, verify, deploy, upgrade)
• lowercase-kebab-case, always include description, group related tasks with common prefixes
• Prefix meta-tasks with + only when the repository already uses that convention

Tool and package management

• Declare ALL npm/Python packages in [tools] as "npm:<pkg>" / "pipx:<pkg>"; never npm install -g or pip install --user
• Shared repositories: pin concrete LTS majors or exact patches (node = "24" or node = "24.15.0"); personal global configs may use symbolic channels (node = "lts")
• Resolve the newest acceptable version first, then record the concrete version — no floating channels in committed configs or CI
• Add tools to [tools] only when tasks or documented setup flows actually invoke them
• Migration from global-package.json, pinning policy, pipx/CI caveats: references/tool-management.md

mise skills add

Treat as a user-global workflow, not project-local task design:

1. Confirm the user is working in a personal/global mise setup
2. Run mise skills add <skill>, then mise install if it adds tool dependencies
3. Keep reusable automation in shared task files or .mise.toml, not ad hoc shell aliases

mise bootstrap (user-global / dotfiles mode)

mise bootstrap (v2026.6.6+, completed v2026.6.14) is declarative machine setup: OS packages, repos, dotfiles, macOS defaults, launchd/systemd units, login shell, tools, and a final [tasks.bootstrap]. Classify these requests as user-global / dotfiles mode.

• Config keys must be nested tables ([bootstrap.packages], not flat bootstrap = ...)
• Package backends: apk/apt/dnf/pacman/brew/brew-cask/mas; cask support is native (no Homebrew required); pin versions via name suffix (brew:postgresql@17), values are "latest"
• packages import is brew-formulae-only; packages prune is opt-in and prefix-inventory based — always --dry-run first
• Declarative sections converge idempotently; the custom [tasks.bootstrap] hook must be kept idempotent by the user

Sections, subcommands, prune safety, and Brewfile migration: references/bootstrap.md.

Review Workflow

0. Classify the request: project-local vs user-global / dotfiles
1. Structure: section ordering and task organization
2. Dependencies: depends vs run usage; run mise task deps <task> to visualize the DAG
3. Parallelism: aggregation tasks that serialize independent work
4. Aliases: conflicts and intuitive naming
5. Task families: many DB/env/dotenvx/secrets/infra/deploy/tools tasks → consider responsibility-based include files

For repository-specific reviews, additionally verify the answer:

• Preserves the repo's documented lightweight-check, deep-verify, refresh, and deploy semantics where they differ
• Does not treat generated outputs as editing surfaces when the repo separates them from authoring surfaces
• Does not bake local Windows workstation PATH/shell failures into a mac/Linux-first task contract
• Separates task behavior as implemented from description wording that could be clearer

Common Issues

Issue	Fix
run = "mise build && mise test" (nested processes)	run = [{ task = "build" }, { task = "test" }]
{ task = "build" } at the head of run	Move to depends = ["build"]
Serial { task = ... } list of independent tasks	Aggregate with depends for parallel execution
run_windows syntax mismatched with actual shell	Inspect the real shell first; see references/windows-shells.md
Generated mise.toml rejected after formatting	Fix the template/generator; exclude generated outputs from formatter tasks

References

Load as needed:

• references/best-practices.md — full run-vs-depends mental model, command composition patterns, advanced features (depends_post, wait_for, retry, timeout), CI integration, performance
• references/bootstrap.md — mise bootstrap sections, packages subcommands/backends, prune safety, Brewfile migration
• references/config-templates.md — common mise.toml templates
• references/current-patterns.md — real-world dotfiles task patterns
• references/task-family-splitting.md — project-local split rules for DB/env/secrets/infra/deploy/tools families
• references/task-config-includes.md — user-global [task_config].includes split guidance
• references/windows-shells.md — Windows shell selection, run_windows syntax, quoting, generated-file pitfalls
• references/tool-management.md — version pinning policy, npm/pipx migration, troubleshooting
• resources/examples/npm-package-migration.md — worked npm migration example
• resources/templates/mise-config-template.toml — starter template