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Agent skill

Dakota Image

by projectbluefin in projectbluefin/dakota

OCI layer assembly, boot testing, installer boundaries, VM work, and local OTA verification for Dakota images.

MITAuto-check passed

Install Dakota Image

skills CLI
$ npx skills add projectbluefin/dakota --skill dakota-image -a claude-code

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

GitHub CLI
$ gh skill install projectbluefin/dakota dakota-image --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/projectbluefin/dakota.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/dakota-image .claude/skills/dakota-image && 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
dakota-image
GitHub stars
180
Token cost
~929 tokens
SKILL.md length
403 words
Files
2 (incl. references)
Skills in repo
10
Repo updated
First seen
Licence
MIT

At a glance

OCI layer assembly, boot testing, installer boundaries, VM work, and local OTA verification for Dakota images.

  • Works in 4 steps: Layer Composition: Compose layers with… → Order Post-Install Steps → Validate: Run just validate to verify… → …
  • SKILL.md covers When to Use, When NOT to Use, Core Process and Invariants, plus 4 more sections
  • Calls just

What it does

Dakota Image is an agent skill from projectbluefin/dakota. OCI layer assembly, boot testing, installer boundaries, VM work, and local OTA verification for Dakota images.

Its SKILL.md is about 930 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/local-ota.md`).

The repository describes itself as: The buildstream for making Bluefin. The licence is MIT.

Example prompts

  • “/dakota-image”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Layer Composition: Compose layers with kind: compose. Build dependencies define layer contents.
  2. Order Post-Install Steps
  3. Validate: Run just validate to verify the composition graph.
  4. Boot Verification Ladder

What it can do on your machine

Read from SKILL.md and the folder at commit 909f687. 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

    Shell commands in SKILL.md call:

    • just

    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

Dakota Image loads about 929 tokens when it runs, and up to ~2.4k if it reads all its reference files. Until then it costs about 31 tokens; SKILL.md has 403 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~31
When it runs · the whole SKILL.md, loaded when a task matches
~929
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.4k

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 projectbluefin/dakota at commit 909f687, republished under its MIT licence (© projectbluefin). 403 words, ~929 tokens.

Download SKILL.mdSave it as .claude/skills/dakota-image/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
dakota-image
description
OCI layer assembly, boot testing, installer boundaries, VM work, and local OTA verification for Dakota images.
metadata.context7-sources
/bootc-dev/bootc

Dakota Image Integration

Use this skill when filesystem content crosses from BuildStream artifacts into OCI layers, or when testing and booting a local Dakota image.

When to Use

  • Modifying layer composition under elements/oci/layers/
  • Changing post-install integration steps in elements/oci/bluefin.bst
  • Running local VM boot tests (just boot-test, just boot-fast, just boot-vm)
  • Validating transactional OTA updates or testing local registries (references/local-ota.md)
  • Enforcing the installer boundary between Dakota and live installer tools

When NOT to Use

  • Building individual source packages or libraries → load dakota-packaging
  • Packaging GNOME Shell extensions → load dakota-extensions
  • Modifying GitHub Actions CI export or publication → load dakota-ci

Core Process

  1. Layer Composition: Compose layers with kind: compose. Build dependencies define layer contents.
  2. Order Post-Install Steps:
    • systemd-sysusers --root /layer
    • glib-compile-schemas /layer/usr/share/glib-2.0/schemas
    • dconf update /layer/etc/dconf/db
    • ldconfig -r /layer (must run LAST before build-oci)
  3. Validate: Run just validate to verify the composition graph.
  4. Boot Verification Ladder:
    • Level 1: just validate (graph structure)
    • Level 2: just lint (bootc container structure)
    • Level 3: just boot-test (automated headless smoke test)
    • Level 4: just boot-fast (interactive ephemeral VM with virtiofs)
    • Level 5: Local OTA testing (references/local-ota.md) for hardware verification

Invariants

  • Layer Element Kind: All layer elements in elements/oci/layers/ MUST use kind: compose. kind: stack produces empty artifacts and will break filesystem generation.
  • Linker Cache Load-Bearing Invariant: ldconfig -r /layer must execute after all library updates and before build-oci. Any command altering /usr/lib must precede ldconfig.
  • Installer Separation: Installer-specific Flatpaks or setup tools are purged on first boot via files/firstboot/. Installer UI changes belong in projectbluefin/bootc-installer, not Dakota.
  • Evidence Before Assertion: Never assert boot success without executing one of the boot test recipes.
Show full SKILL.md (136 more words)Show less

Common Rationalizations

RationalizationReality
"The element built, so the layer is fine."Build success does not guarantee runtime inclusion or correct compose filters.
"I can put ldconfig anywhere in the post-install list."If run before schema or dconf steps that copy libraries, /etc/ld.so.cache will be stale on boot.
"Booting in QEMU isn't necessary for a small change."Desktop regression (e.g. GDM loop) only manifests at real boot.

Red Flags

  • kind: stack inside elements/oci/layers/
  • New post-install commands inserted after ldconfig -r /layer
  • Using rpm-ostree or dnf in layer integration scripts
  • Modifying live installer code directly in Dakota instead of upstream repos

Verification

  • just validate passes
  • just lint passes on the exported container
  • just boot-test exits 0 (GDM desktop reaches ready state)
  • /etc/ld.so.cache contains newly introduced shared libraries
  • First-boot service cleanup scripts succeed

References

© projectbluefin, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in .agents/skills/dakota-image of projectbluefin/dakota.

  • SKILL.md
  • references/local-ota.md

Open the folder on GitHubat commit 909f687

Compare with similar skills

Dakota Image 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.

Dakota Image compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Dakota Image this skillprojectbluefin/dakota180—~929Automated safety check: PassMIT
Generating Python Installeraffaan-m/ECC276k1 repos~6.1kAutomated safety check: PassMIT
Kubeshark Installerkubeshark/kubeshark12k—~3.6kAutomated safety check: NotesApache-2.0
Pwa Installabilitythedaviddias/Front-End-Checklist74k—~450Automated safety check: PassMIT
Markstream Installsickn33/agentic-awesome-skills47k1 repos~2kAutomated safety check: PassMIT
Skill Installercodewhale-hq/Codewhale41k—~360Automated safety check: PassMIT

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More from projectbluefin/dakota

All 10 skills in this repo

  • Dakota Buildstream

    projectbluefin/dakota

    BuildStream elements, junctions, patches, dependency graphs, and build failures in Dakota.

    180 GitHub stars~1k tokensUpdated today
    Auto-check passed

  • Dakota Extensions

    projectbluefin/dakota

    Package, update, and configure GNOME Shell extensions, Quick Settings panels, and schemas in Dakota.

    180 GitHub stars~1.6k tokensUpdated today
    Auto-check passed

  • Dakota Factory

    projectbluefin/dakota

    Maintain task-relevant Dakota guidance: documentation accuracy, official-source verification, and skill auditing.

    180 GitHub stars~1.1k tokensUpdated today
    Auto-check passed

  • Dakota Packaging

    projectbluefin/dakota

    Add, remove, or update native software built from source in Dakota, including Go, Rust, Zig, C/Meson, and binary releases.

    180 GitHub stars~1.1k tokensUpdated today
    Auto-check passed

  • Dakota Ujust

    projectbluefin/dakota

    Author safe end-user ujust recipes in files/just-overrides/default.just, including quoting, gum, JSON, and public-post confirmation.

    180 GitHub stars~1.1k tokensUpdated today
    Auto-check: notes

  • Dakota Workstation

    projectbluefin/dakota

    Dakota host Homebrew integration and workstation-specific services.

    180 GitHub stars~937 tokensUpdated today
    Auto-check passed

Questions about Dakota Image

What does Dakota Image do?

OCI layer assembly, boot testing, installer boundaries, VM work, and local OTA verification for Dakota images. Dakota Image is an agent skill from projectbluefin/dakota. OCI layer assembly, boot testing, installer boundaries, VM work, and local OTA verification for Dakota images.

How do I install Dakota Image in Claude Code?

Run `npx skills add projectbluefin/dakota --skill dakota-image -a claude-code`. Or copy the skill folder (.agents/skills/dakota-image in projectbluefin/dakota) into .claude/skills/dakota-image in your project. Claude Code loads it when a task matches its description.

How do I install Dakota Image in Codex?

Run `npx skills add projectbluefin/dakota --skill dakota-image -a codex`. Or copy the skill folder (.agents/skills/dakota-image in projectbluefin/dakota) into .agents/skills/dakota-image in your project. Codex loads it when a task matches its description.

Can I use Dakota Image 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 projectbluefin/dakota --skill dakota-image -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dakota-image, .gemini/skills/dakota-image, .github/skills/dakota-image and .opencode/skills/dakota-image in your project.

What does Dakota Image need to run?

Going by SKILL.md and its folder, Dakota Image needs the command-line tools its instructions call (just).

Does Dakota Image 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 Dakota Image 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 Dakota Image use?

Dakota Image is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Dakota Image use?

About 929 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.5k tokens, read only when the agent opens those files.

What are the alternatives to Dakota Image?

Skills that share tags, products or a category with Dakota Image: Generating Python Installer (affaan-m/ECC, 276k stars), Kubeshark Installer (kubeshark/kubeshark, 12k stars), Pwa Installability (thedaviddias/Front-End-Checklist, 74k stars) and Markstream Install (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Dakota Image?

projectbluefin (a GitHub organization) maintains it in projectbluefin/dakota, which has 180 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on October 10, 2026.

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