yocto-agent-skills

Official-doc-first Yocto Project and BitBake agent skills for creating or reviewing recipes, layers, images, machine/distro config, bbappends, build logs, QA errors, fetch/patch/package/rootfs failures, and modern BitBake override syntax. Use when working with Yocto/OpenEmbedded files such as .bb, .bbappend, .bbclass, layer.conf, local.conf, bblayers.conf, machine config, distro config, image recipes, kernel recipes, or BitBake command output.

Review and debug Yocto BSP, MACHINE configuration, kernel provider selection, kernel recipes, kernel config fragments, defconfig, devicetree, U-Boot, FIT images, deploy artifacts, and kernel module installation. Use for machine/BSP/kernel/devicetree/bootloader issues or when kernel artifacts are missing from deploy output.

Release-aware official documentation routing for Yocto Project, OpenEmbedded, and BitBake questions. Use when the user asks where to find current Yocto docs, when a Yocto answer may depend on release/branch, or before giving precise guidance about variables, classes, tasks, QA errors, migration, BSP, kernel, SDK, security, SBOM, CVE, or build setup.

Debug and review Yocto image recipes, IMAGE_INSTALL, IMAGE_FEATURES, package groups, do_rootfs failures, package manager errors, postinstall scripts, pkgdata lookups, package feeds, and missing packages in root filesystems. Use when packages do not appear in images, rootfs construction fails, image features behave unexpectedly, or the user needs image/rootfs guidance.

Review and debug Yocto license metadata, LIC_FILES_CHKSUM, LICENSE_FLAGS, incompatible licenses, license manifests, SPDX/SBOM generation, CVE checking, archiver/copyleft source compliance, and security policy. Use for compliance, CVE, SBOM, license, commercial license, source archiving, or security review questions.

Debug BitBake and Yocto build failures from task logs, run scripts, metadata expansion, packages, providers, rootfs errors, fetch/patch/configure/compile/install/package/image failures, and common QA messages. Use when the user provides BitBake output, tmp/work logs, do_* task failures, package/rootfs errors, or asks how to diagnose a Yocto build.

Review Yocto/OpenEmbedded layer structure, layer.conf, BBFILE collections and patterns, LAYERSERIES_COMPAT, LAYERDEPENDS, BBFILE_PRIORITY, BBFILES_DYNAMIC, bbappend matching, overlayed recipes, provider selection, and layer compatibility. Use for layer creation, layer migration, layer review, or when a bbappend/recipe is not being applied.

Review and improve Yocto/OpenEmbedded recipes, bbappends, bbclasses, package splits, dependencies, licensing, source fetching, patch handling, install logic, systemd/init integration, PACKAGECONFIG, and modern BitBake override syntax. Use for .bb, .bbappend, .bbclass, recipe diffs, recipe modernization, packaging errors, or metadata code review.