diagramming-code SKILL.md skillA
diagramming-code from trailofbits/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add trailofbits/skills/diagramming-code@git:20261014.29424a4Pins git:20261014.29424a4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- trailofbits/skills
- Path
plugins/trailmark/skills/diagramming-code/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261014.29424a4, committed Oct 14, 2026
- First version recorded
- Mar 31, 2026
- Size
- 6,811 bytes
- Repository stars
- 8,043
- License
- CC-BY-SA-4.0
Generates Mermaid diagrams from Trailmark code graphs. Produces call graphs, class hierarchies, module dependency maps, containment diagrams, complexity heatmaps, and attack surface data flow visualizations. Use when visualizing code architecture, drawing call graphs, generating class diagrams, creating dependency maps, producing complexity heatmaps, or visualizing data flow and attack surface paths as Mermaid diagrams.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Diagramming Code Generates Mermaid diagrams from Trailmark's code graph. A pre-made script handles Mermaid syntax generation; Claude selects the diagram type and parameters. Trailmark 0.4.0 includes a native `trailmark diagram` command; use it only after a version/command check, otherwise use this skill's bundled script. ## When to Use - Visualizing call paths between functions - Drawing class inheritance hierarchies - Mapping module import dependencies - Showing class structure with members - Highlighting complexity hotspots with color coding - Tracing data flow from entrypoints to sensitive functions ## When NOT to Use - Querying the graph without visualization (use the `trailmark` skill) - Mutation testing triage (use the `genotoxic` skill) - Architecture diagrams not derived from code (draw by hand) ## Prerequisites **trailmark** must be installed. If `uv run trailmark` fails, run: ```bash uv tool install trailmark # Python snippets: uv run --with trailmark python - (a tool env is not importable) ``` **DO NOT** fall back to hand-writing Mermaid from source code reading. The script uses Trailmark's parsed graph for accuracy. If installation fails, …
Read the whole file at its exact version.
How to install
mdr add trailofbits/skills/diagramming-code@sha256:1af57963c6d8c68eThe line at the top of this page pins the label git:20261014.29424a4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qkn5anohzu6xku47)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 31, 2026 and Oct 14, 2026, about one every 49 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.29424a4 latest | 2026-10-14 | 29424a4 | 6,811 B | A | view · diff |
| git:20260819.9e06dc6 | 2026-08-19 | 9e06dc6 | 6,838 B | A | view · diff |
| git:20260729.841bffe | 2026-07-29 | 841bffe | 6,752 B | A | view · diff |
| git:20260429.48bd262 | 2026-04-29 | 48bd262 | 5,793 B | A | view · diff |
| git:20260331.6b79b5e | 2026-03-31 | 6b79b5e | 5,447 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6811 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
trailofbits/skills · 8,043 stars · license CC-BY-SA-4.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qkn5anohzu6xku47 GET https://markdownregistry.com/api/v1/resolve?ref=trailofbits/skills/diagramming-code GET https://markdownregistry.com/api/v1/blob/1af57963c6d8c68eec1c360f3ee4cfec5be7c163a3c01c701f58a67980fff910
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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