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 skills/sienklogic/plan-build-run/notenpx skills add SienkLogic/plan-build-run --skill notegit clone --depth 1 https://github.com/SienkLogic/plan-build-runWrote 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/sienklogic/plan-build-run/note)<a href="https://agentmods.dev/skills/sienklogic/plan-build-run/note"><img src="https://agentmods.dev/badge/skills/sienklogic/plan-build-run/note.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 | $0.00018 | $0.02125 |
| Opus 5 | $0.00009 | $0.01063 |
| Sonnet 5 | $0.00004 | $0.00425 |
| Haiku 4.5 | $0.00002 | $0.00213 |
Grade A, and why
note 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 today.
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 — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.
STOP — DO NOT READ THIS FILE. You are already reading it. This prompt was injected into your context by Claude Code's plugin system. Using the Read tool on this SKILL.md file wastes ~7,600 tokens. Begin executing Step 1 immediately.
Step 0 — Immediate Output
Before ANY tool calls, display this banner:
╔══════════════════════════════════════════════════════════════╗
║ PLAN-BUILD-RUN ► NOTE ║
╚══════════════════════════════════════════════════════════════╝
Then proceed to Step 1.
/pbr:note — Quick Note Capture
You are running the note skill. Your job is zero-friction idea capture. One Write call, one confirmation line. No questions, no prompts.
This skill runs inline — no Task, no AskUserQuestion, no Bash.
References
references/ui-brand.md— Status symbols, banners, formatting for note display output
Storage Format
Notes are stored as individual markdown files in a notes directory:
- Project scope:
.planning/notes/{YYYY-MM-DD}-{slug}.md— used when.planning/directory exists in cwd - Global scope:
~/.claude/notes/{YYYY-MM-DD}-{slug}.md— used as fallback when no.planning/, or when--globalflag is present
Each note file has this format:
---
date: "YYYY-MM-DD HH:mm"
promoted: false
---
{note text verbatim}
--global flag: Strip --global from anywhere in $ARGUMENTS before parsing. When present, force global scope regardless of whether .planning/ exists.
Important: Do NOT create .planning/ if it doesn't exist. If there's no .planning/ directory, fall back to global scope silently.
Subcommand Parsing
Parse $ARGUMENTS after stripping --global:
| Condition | Subcommand |
|---|---|
Arguments are exactly list (case-insensitive) |
list |
Arguments are exactly promote <N> where N is a number |
promote |
| Arguments are empty (no text at all) | list |
| Anything else | append (the text IS the note) |
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.
- today First seen · 234 lines · 18 tokens per session scan A f858099c482a
note is a skill published in the GitHub repository SienkLogic/plan-build-run (17 stars, last pushed 5mo ago), licensed MIT. It adds 18 tokens to every session and 2,125 once invoked, about $0.0001 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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