Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add animalzinc/claude-plugins/plugin install blog-style-guide-creatorWrote 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.
[](https://agentmods.dev/skills/animalzinc/claude-plugins/build-style-guide)<a href="https://agentmods.dev/skills/animalzinc/claude-plugins/build-style-guide"><img src="https://agentmods.dev/badge/skills/animalzinc/claude-plugins/build-style-guide/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.
<a href="https://agentmods.dev/skills/animalzinc/claude-plugins/build-style-guide"><img src="https://agentmods.dev/badge/skills/animalzinc/claude-plugins/build-style-guide.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00092 | $0.01745 |
| Opus 5.5 | $0.00037 | $0.00698 |
| Sonnet 5.5 | $0.00018 | $0.00349 |
| Haiku 4.5 | $0.00009 | $0.00175 |
Grade A, and why
build-style-guide 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 2d ago.
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.
How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Build a style guide
Creates, updates, imports, and upgrades one brand's guide. Sources become candidate rules with evidence; one agent merges them with the current guide into a proposal; the user approves the diff before the guide changes. The format every rule follows is in schema.md.
Arguments: $ARGUMENTS
Commands
Every sgc step is python3 "${CLAUDE_PLUGIN_ROOT}/scripts/sgc.py" <command> ..., written out in full each time and run as its own Bash call, never chained with ;, &&, or a pipe, so it matches the skill's permission for sgc; read and list files with the Read and Glob tools. On Windows, py -3 in place of python3. If neither runs Python 3.9 or later, stop and tell the user the plugin needs Python 3.9+ from python.org. sgc prints JSON; on a non-zero exit, show the stderr message and stop unless a step says how to recover.
Modes
| Arguments | Does |
|---|---|
<brand> <sources> |
A new guide, or an update to an existing one, from articles |
--from-kit [kit] |
Imports a brand kit through a connected brand kit tool |
--from-kit --kit-only |
Compiles the guide from the kit alone; other sources become proposals for the kit's owner |
--from-doc F |
Imports a brand style document |
--edits [folder] |
Learns rules from original and edited draft pairs |
--upgrade |
Converts a version 1 guide, following upgrade-v1.md |
Modes combine: --from-doc brand.pdf https://blog.example.com reads both.
Steps
1. Resolve the brand
The plugin's guides folder setting reads: ${user_config.guides_dir}. Run sgc brand-path <brand> --project-dir "${CLAUDE_PROJECT_DIR}", adding --guides-dir "<path>" only when that setting is an absolute path (an unset setting shows as text starting with ${, which must never reach the shell). Keep brand_dir, guide, guide_exists, and schema_version. A schema_version of 1 with any mode other than --upgrade: run the upgrade first, then continue.
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.
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.
- 2d ago First seen · 77 lines · 92 tokens per session scan A d18601681334
build-style-guide is a skill published in the GitHub repository animalzinc/claude-plugins (15 stars, last pushed 2d ago), licensed MIT. It adds 92 tokens to every session and 1,745 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-11-11.
build-style-guide compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| build-style-guideanimalzinc/claude-plugins | Skill | 15 | 2d ago | MIT | A | 92 | Claude Code |
| cf-style-guideteachskillofskills-ai/ContentForge-techshu | Skill | 1 | 2mo ago | MIT | A | 178 | Claude Code |
| cf-briefteachskillofskills-ai/ContentForge-techshu | Skill | 1 | 2mo ago | MIT | A | 169 | Claude Code |
| cf-helpteachskillofskills-ai/ContentForge-techshu | Skill | 1 | 2mo ago | MIT | A | 149 | Claude Code |
| cf-publishteachskillofskills-ai/ContentForge-techshu | Skill | 1 | 2mo ago | MIT | A | 168 | Claude Code |
| cf-templateteachskillofskills-ai/ContentForge-techshu | Skill | 1 | 2mo ago | MIT | A | 160 | Claude Code |
| cf-variantsteachskillofskills-ai/ContentForge-techshu | Skill | 1 | 2mo ago | MIT | A | 162 | Claude Code |