Bitbake dry run diagnostics

Skill BenGardiner/bitbake-yocto-agent-skills/bitbake-dry-run-diagnostics

Performs pre-flight validation of Yocto metadata and task graphs without executing a build. Use when checking syntax after a layer change, simulating build impact with dry-runs (-n), or verifying source availability. Do not use for troubleshooting active build failures or compiling target images.From its SKILL.md

Install

npx -y skills add BenGardiner/bitbake-yocto-agent-skills --skill bitbake-dry-run-diagnostics

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
runs commandsInstructs the agent to run 4 commands, including `bitbake -p` and 3 more.

SKILL.md

1.6 KB, 308 tokens by cl100k_base, as published. Nobody here has run it

BitBake Diagnostic & Dry-Run Procedures

Use the following methods to validate Yocto metadata and task graphs without triggering a full build process.

1. Metadata Parsing Check

Validate syntax in .bb, .bbappend, .bbclass, and .conf files after modifying layers to ensure the environment is still sane and indexable.

Run command:
```
bitbake -p
```

2. Execution Dry-Run

Simulate the build process for a specific target to visualize the task dependency graph and identify which tasks need to run ("dirty") versus which will be accelerated by the SState cache.

Run command:
```
bitbake -n <target>
```

3. Dependency Expansion

Expand all variables and functions for a specific recipe to see the final parsed environment. This is critical for debugging variable overrides (e.g., _append, _remove) or determining the final value of variables like SRC_URI.

Run command:
```
bitbake -e <target>
```

4. Source Fetch Validation

Attempt to download all remote assets required for a build without starting compilation. Use this as a pre-flight check to ensure no 404 errors or mirror issues will break a long-running build later.

Run command:
```
bitbake -c fetchall <target>
```

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.