Bom Convert Validate

What it does

When your agent uses it

• Asked to convert an SBOM to SPDX
• Upgrade a BOM spec version
• Score SBOM quality

Example prompts

• “Use the bom-convert-validate skill to convert CycloneDX BOMs to SPDX 3.0.1 JSON-LD or between CycloneDX spec versions with cdx-convert, and…”
• “/bom-convert-validate”

Workflow steps

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

1. 1Schema validation — CycloneDX JSON schema
2. 2Deep validation — metadata, purl, bom-ref, and property consistency
3. 3Compliance rule packs — OWASP SCVS (all 87 controls across L1/L2/L3) and EU Cyber Resilience Act SBOM expectations (8 controls)

What it can do on your machine

Read from SKILL.md and the folder at commit e256966. 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

  No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • cdxgen.github.io

  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

Bom Convert Validate loads about 1.5k tokens when it runs. Until then it costs about 116 tokens; SKILL.md has 417 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~116

When it runs · the whole SKILL.md, loaded when a task matches

~1.5k

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

• WarningContains instruction-override wording (e.g. “without asking the user”)SKILL.md:125

  generation does not run. Do not tell the user their BOM is "already validated"

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 cdxgen/cdxgen at commit e256966, republished under its Apache-2.0 licence (© cdxgen). 417 words, ~1,498 tokens.

name

bom-convert-validate

description

Converts CycloneDX BOMs to SPDX 3.0.1 JSON-LD or between CycloneDX spec versions with cdx-convert, and validates BOMs against JSON schema, deep consistency checks, and OWASP SCVS and EU Cyber Resilience Act compliance benchmarks with cdx-validate, emitting SARIF for code scanning. Use when asked to convert an SBOM to SPDX, downgrade or upgrade a BOM spec version, validate or lint a BOM, check SCVS or CRA compliance, or score SBOM quality.

# CycloneDX to SPDX 3.0.1 JSON-LD (default target)
cdx-convert -i /absolute/path/to/bom.json -o /absolute/path/to/bom.spdx.json

# Cross-convert between CycloneDX spec versions
cdx-convert -i /absolute/path/to/bom.json --to 1.6 -o /absolute/path/to/bom.1.6.json

cdxgen -o /absolute/path/to/bom.json /absolute/path/to/project
cdx-convert -i /absolute/path/to/bom.json --to 1.5 -o /absolute/path/to/bom.1.5.json

cdxgen --format spdx -o /absolute/path/to/bom.spdx.json /absolute/path/to/project

cdx-validate -i /absolute/path/to/bom.json

cdx-validate -i /absolute/path/to/bom.cdx

cdx-validate -i /absolute/path/to/bom.json --benchmark scvs-l2 -r sarif -o /absolute/path/to/results.sarif

cdx-validate -i /absolute/path/to/bom.json \
  --benchmark scvs-l2,cra \
  --public-key /absolute/path/to/public.pem --require-signature \
  --strict \
  -r sarif -o /absolute/path/to/results.sarif

© cdxgen, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in claude-plugin/skills/bom-convert-validate of cdxgen/cdxgen.

Open the folder on GitHubat commit e256966