yocto-image-analysis

yocto-image-analysis is a skill for Codex from prashantdivate/awesome-yocto-ai-agent-skills. It costs 80 tokens per session (401 once invoked), scanned A, original, MIT.

A Yocto Linux image analysis procedure for tracing why software packages appear in a device image and how they affect it. Yocto is a system for building customized Linux distributions for embedded devices.

In plain words
What is it for?
Finding which recipe or dependency added a package, comparing image contents, estimating package removals, reducing image size, and inspecting package files.
Why use it?
It helps explain package inclusion and image size using manifests, dependency data, build history, and dependency graphs instead of guessing.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Finding which recipe or dependency added a package, comparing image contents, estimating package removals, reducing image size, and inspecting package files.

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Install with agentmods
npx agentmods add skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add prashantdivate/awesome-yocto-ai-agent-skills --skill yocto-image-analysis
Clone the repo
git clone --depth 1 https://github.com/prashantdivate/awesome-yocto-ai-agent-skills

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for yocto-image-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis/github.svg)](https://agentmods.dev/skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis)
Your own site
<a href="https://agentmods.dev/skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis"><img src="https://agentmods.dev/badge/skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for yocto-image-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis"><img src="https://agentmods.dev/badge/skills/prashantdivate/awesome-yocto-ai-agent-skills/yocto-image-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 401 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00080 $0.00401
Opus 5 $0.00040 $0.00200
Sonnet 5 $0.00016 $0.00080
Haiku 4.5 $0.00008 $0.00040

Measured 11d ago against content hash 6be09e4c5c3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

yocto-image-analysis scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/find_image_package_refs.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

yocto-image-analysis/SKILL.md · 38 lines

What it actually says

Yocto Image Analysis

Workflow

  1. Identify image recipe, MACHINE, DISTRO, package format, and actual deploy directory.
  2. Collect image manifests, package data, dependency graphs, and buildhistory when available.
  3. Trace inclusion from image recipe, packagegroups, features, runtime dependencies, recommends, and distro/machine policy.
  4. Estimate "what-if" changes by checking dependency chains before editing metadata.
  5. Route recipe changes to $yocto-recipe-maintenance and build failures to $yocto-build-debug.

Commands

oe-pkgdata-util list-pkgs
oe-pkgdata-util find-path <path>
oe-pkgdata-util lookup-recipe <pkg>
oe-pkgdata-util list-pkg-files <pkg>
bitbake -g <image>
bitbake -e <image>

Use find_image_package_refs.py with a build/repo path and package name for a quick text scan across manifests, package data, and dependency graph files.

References

Guardrails

  • Do not assume a package is directly listed in IMAGE_INSTALL; it may arrive through packagegroups, recommends, shlib deps, or image features.
  • Do not remove packages from an image without checking runtime dependencies and service impact.
  • Do not optimize size blindly; preserve required update, debug, recovery, and compliance artifacts.
Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 38 lines · 80 tokens per session scan A 6be09e4c5c3c

Subscribe to this mod's changes

yocto-image-analysis is a skill published in the GitHub repository prashantdivate/awesome-yocto-ai-agent-skills (4 stars, last pushed 2mo ago), licensed MIT. It adds 80 tokens to every session and 401 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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