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/backnotprop/plannotator/pierre-guardnpx skills add backnotprop/plannotator --skill pierre-guardgit clone --depth 1 https://github.com/backnotprop/plannotatorWhat 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 | $0.00103 | $0.01735 |
| Opus 5 | $0.00051 | $0.00868 |
| Sonnet 5 | $0.00021 | $0.00347 |
| Haiku 4.5 | $0.00010 | $0.00173 |
Grade A, and why
pierre-guard 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 3d 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 — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Pierre Integration Guard
Plannotator's code review UI wraps @pierre/diffs — an open-source diff renderer that uses Shadow DOM. The integration is concentrated in a single file but relies on undocumented internals (shadow DOM selectors, CSS variable names, grid layout assumptions). This skill helps verify changes don't break that contract.
Source of Truth
- Upstream repo: https://github.com/pierrecomputer/pierre/tree/main/packages/diffs
- Local types:
node_modules/@pierre/diffs/dist/(.d.tsfiles) - Integration point:
packages/review-editor/components/DiffViewer.tsx - Current version: check
packages/review-editor/package.jsonfor the pinned version
Always verify against the upstream repo or local .d.ts files — don't rely on memory of the API shape.
What We Import
import { FileDiff } from '@pierre/diffs/react';
import { getSingularPatch, processFile } from '@pierre/diffs';
These are the only three imports. DiffViewer.tsx is the only file that touches Pierre.
API Surface to Guard
1. Component Props (FileDiff)
Read the current prop types from node_modules/@pierre/diffs/dist/react/index.d.ts or the upstream source. The props we use:
| Prop | Type | Notes |
|---|---|---|
fileDiff |
FileDiffMetadata |
From getSingularPatch() or processFile() |
options |
FileDiffOptions<T> |
See options table below |
lineAnnotations |
DiffLineAnnotation<T>[] |
{ side, lineNumber, metadata } |
selectedLines |
SelectedLineRange | null |
{ start, end, side } |
renderAnnotation |
(ann) => ReactNode |
Custom inline annotation renderer |
renderHoverUtility |
(getHoveredLine) => ReactNode |
The + button on hover (deprecated upstream — watch for removal) |
2. Options Object
| Option | Value We Pass | Risk |
|---|---|---|
themeType |
'dark' | 'light' |
Low — standard enum |
unsafeCSS |
CSS string | High — targets internal selectors |
diffStyle |
'split' | 'unified' |
Low — standard enum |
diffIndicators |
'bars' |
Low |
hunkSeparators |
'line-info' |
Low |
enableLineSelection |
true |
Low |
enableHoverUtility |
true |
Medium — deprecated prop |
onLineSelectionEnd |
callback | Medium — signature could change |
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.
- 3d ago First seen · 138 lines · 103 tokens per session scan A a12d94354893
pierre-guard is a skill published in the GitHub repository backnotprop/plannotator (8,341 stars, last pushed yesterday), licensed Apache-2.0. It adds 103 tokens to every session and 1,735 once invoked, about $0.0005 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 2026-08-30.
Other skills, from other repositories
cache-notes
Fetch & embed AI transcripts as Obsidian callouts. Args: , all, refresh . Prompts for URLs if empty.
followup-todos
Extract action items as plain markdown bullets (with confirmation). Args: . No args = run /note-status pending --step=todos.
meeting
Create or wrap meeting notes. Args: {title} [folder=X], wrap , wrap pending [today|this week|dates]. No args = pick from Google Calendar.
organize-meetings
Triage Meetings/inbox/ — move each file to the correct subfolder by finding adjacent/similar notes via qmd, applying learned routing conventions from memory, and confirming with the user.
recap
Produce a weekly/date-range recap from emails, Slack, Jira/Confluence, and vault notes. Args: [dates]. Default = this week.
sprint-retro
Draft a Sprint Retro by synthesizing scrum dailies, recaps, the sprint planning note, and the prior retro. Args: [sprint number | dates]. No args = infer the current sprint.