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 agentmods add commands/luna-prompts/skillnote/skillnotegit clone --depth 1 https://github.com/luna-prompts/skillnoteWhat 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 | $0.00013 | $0.00444 |
| Opus 5 | $0.00006 | $0.00222 |
| Sonnet 5 | $0.00003 | $0.00089 |
| Haiku 4.5 | $0.00001 | $0.00044 |
Grade B, and why
skillnote scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
SKILLS=$(ls -d .claude/skills/skillnote-*/ 2>/dev/null | xargs -I{} basename {} | sed 's/^skillnote-//' | tr '\n' ', ' | sed 's/,$//' | sed 's/,/, /g') What it actually says
Show the SkillNote dashboard. Run this single command and display its output:
echo ""
echo " ● SkillNote"
echo ""
# Active collection
if [ -f .skillnote.json ]; then
COL=$(python3 -c "import json; c=json.load(open('.skillnote.json')).get('collections',[]); print(c[0] if c else 'none')" 2>/dev/null)
echo " Collection: $COL"
else
echo " Collection: (none — run /skillnote:collection to pick)"
fi
# Synced skills
if [ -d .claude/skills ]; then
SKILLS=$(ls -d .claude/skills/skillnote-*/ 2>/dev/null | xargs -I{} basename {} | sed 's/^skillnote-//' | tr '\n' ', ' | sed 's/,$//' | sed 's/,/, /g')
COUNT=$(ls -d .claude/skills/skillnote-*/ 2>/dev/null | wc -l | tr -d ' ')
echo " Skills: $COUNT ($SKILLS)"
else
echo " Skills: 0"
fi
# Web URL
HOST="${CLAUDE_PLUGIN_OPTION_HOST:-localhost}"
if [ -z "$HOST" ] || [ "$HOST" = "localhost" ]; then
[ -f "$HOME/.skillnote/host" ] && HOST=$(cat "$HOME/.skillnote/host")
fi
echo " Web UI: http://${HOST:-localhost}:3000/collections"
echo ""
echo " Commands:"
echo " /skillnote:collection Change active collection"
echo " /skillnote:skill-push Create & push a new skill"
echo ""
echo " GitHub: github.com/luna-prompts/skillnote ★ Star us!"
echo ""
Display the output as-is. Do not add commentary.
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 · 47 lines · 13 tokens per session scan B c873494128cd
skillnote is a command published in the GitHub repository luna-prompts/skillnote (59 stars, last pushed 18d ago), licensed MIT. It adds 13 tokens to every session and 444 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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