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 richfrem/agent-plugins-skills/plugin install agent-scaffoldersWrote 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/richfrem/agent-plugins-skills/create-apm-package)<a href="https://agentmods.dev/skills/richfrem/agent-plugins-skills/create-apm-package"><img src="https://agentmods.dev/badge/skills/richfrem/agent-plugins-skills/create-apm-package.svg" alt="Measured on agentmods" 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 | $0.00062 | $0.00466 |
| Opus 5 | $0.00031 | $0.00233 |
| Sonnet 5 | $0.00012 | $0.00093 |
| Haiku 4.5 | $0.00006 | $0.00047 |
Grade A, and why
create-apm-package 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.
What it actually says
create-apm-package Skill 🏗️
Overview
This skill scaffolds a new APM-native package using the "Source in .apm/" pattern. It is used for greenfield projects where APM is the primary distribution format from day one.
🚫 Non-Negotiables
- Source in .apm/ — Primitives MUST be authored inside the
.apm/directory. - Kebab-case — Package names must be lowercase with hyphens.
- No Overwrites — Never overwrite an existing directory without explicit confirmation.
- Governance Docs — Every package must include
docs/governance.md.
Decision Tree
- New Package? -> Proceed with
scripts/scaffold_apm.py. - Existing Plugin? -> Route to
convert-plugin-to-apm. - Hybrid needed? -> Use
--allow-hybridflag in scaffold script.
Generated Structure
<package-name>/
apm.yml
README.md
.gitignore
.apm/
skills/
agents/
instructions/
prompts/
hooks/
mcp/
scripts/
tests/
docs/
governance.md
attribution.md
package-lifecycle.md
scripts/
tests/
Validation Steps
After scaffolding, always run:
python scripts/validate_apm_package.py --path ./<package-name>
Anti-Patterns
- Duplicate Roots: Creating
.apm/skillswhile also havingskills/in the same package. - Missing Docs: Skipping the
docs/folder in ateamorenterpriselane. - Absolute Paths: Using machine-specific paths in
apm.yml.
What ships with it
5 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 · 60 lines · 62 tokens per session scan A 7dbe9d7938a1
create-apm-package is a skill published in the GitHub repository richfrem/agent-plugins-skills (6 stars, last pushed 2d ago), licensed MIT. It adds 62 tokens to every session and 466 once invoked, about $0.0003 per session on Opus 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 2026-09-03.
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