Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add movebrickschi/harness-engineering-mcp --skill sharing-skillsgit clone --depth 1 https://github.com/movebrickschi/harness-engineering-mcpWrote 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/movebrickschi/harness-engineering-mcp/sharing-skills)<a href="https://agentmods.dev/skills/movebrickschi/harness-engineering-mcp/sharing-skills"><img src="https://agentmods.dev/badge/skills/movebrickschi/harness-engineering-mcp/sharing-skills.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 | $0.00041 | $0.01107 |
| Opus 5 | $0.00020 | $0.00553 |
| Sonnet 5 | $0.00008 | $0.00221 |
| Haiku 4.5 | $0.00004 | $0.00111 |
Grade A, and why
sharing-skills scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sharing Skills
Overview
Contribute skills from your local branch back to the upstream repository.
Workflow: Branch → Edit/Create skill → Commit → Push → PR
When to Share
Share when:
- Skill applies broadly (not project-specific)
- Pattern/technique others would benefit from
- Well-tested and documented
- Follows writing-skills guidelines
Keep personal when:
- Project-specific or organization-specific
- Experimental or unstable
- Contains sensitive information
- Too narrow/niche for general use
Prerequisites
ghCLI installed and authenticated- Working directory is
~/.config/superpowers/skills/(your local clone) - REQUIRED: Skill has been tested using writing-skills TDD process
Sharing Workflow
1. Ensure You're on Main and Synced
cd ~/.config/superpowers/skills/
git checkout main
git pull upstream main
git push origin main # Push to your fork
2. Create Feature Branch
# Branch name: add-skillname-skill
skill_name="your-skill-name"
git checkout -b "add-${skill_name}-skill"
3. Create or Edit Skill
# Work on your skill in skills/
# Create new skill or edit existing one
# Skill should be in skills/category/skill-name/SKILL.md
4. Commit Changes
# Add and commit
git add skills/your-skill-name/
git commit -m "Add ${skill_name} skill
$(cat <<'EOF'
Brief description of what this skill does and why it's useful.
Tested with: [describe testing approach]
EOF
)"
5. Push to Your Fork
git push -u origin "add-${skill_name}-skill"
6. Create Pull Request
# Create PR to upstream using gh CLI
gh pr create \
--repo upstream-org/upstream-repo \
--title "Add ${skill_name} skill" \
--body "$(cat <<'EOF'
## Summary
Brief description of the skill and what problem it solves.
## Testing
Describe how you tested this skill (pressure scenarios, baseline tests, etc.).
## Context
Any additional context about why this skill is needed and how it should be used.
EOF
)"
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.
- 7d ago First seen · 195 lines · 41 tokens per session scan A a47594da58f0
sharing-skills is a skill published in the GitHub repository movebrickschi/harness-engineering-mcp (2 stars, last pushed 3mo ago), licensed MIT. It adds 41 tokens to every session and 1,107 once invoked, about $0.0002 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 2026-08-31.
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