pantoum: Instructions file for Claude Code

CLAUDE.md

pantoum CLAUDE.md is an instructions file for Claude Code from pantoum-spfx/pantoum. It costs 6,800 tokens per session, scanned A, original, MIT.

A project guide for PANTOUM, a TypeScript tool that automates upgrades of SharePoint Framework projects. SharePoint Framework is Microsoft’s way to build custom extensions for SharePoint and Microsoft 365.

In plain words
What is it for?
Use it when developing the upgrade tool, its command-line interface, web app, Claude Code integration, patching, or reports.
Why use it?
It explains the project’s services, interfaces, workflow, and web application so the coding agent can make changes in the right place.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions Claude Code.

This is pantoum-spfx/pantoum's own configuration. It tells Claude Code how to work on pantoum itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything pantoum configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pantoum-spfx/pantoum. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/pantoum-spfx/pantoum/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/pantoum-spfx/pantoum

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Per session 6,800 This file is loaded in full into every session.
When invoked 6,800 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.06800 $0.06800
Opus 5 $0.03400 $0.03400
Sonnet 5 $0.01360 $0.01360
Haiku 4.5 $0.00680 $0.00680

Measured 10d ago against content hash ee287fc035b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pantoum CLAUDE.md 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 10d 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.

CLAUDE.md · 559 lines

How it starts

The opening of the file, as written. The whole thing — 559 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PANTOUM Development Context for Claude Code

Project Overview

PANTOUM is an SPFx (SharePoint Framework) upgrade automation tool that combines M365 CLI and AI-powered error resolution.

Architecture Highlights

Core Services

  • UpgradeService - Main orchestration, handles solution processing workflow
  • PatchService - Deterministic patch generation and application
  • ReportService - Comprehensive JSON/Markdown reporting
  • ClaudeMigrationExecutor - AI-powered error analysis and code fixes

Key Implementation Details

  • TypeScript throughout with strict typing
  • Modular architecture with clear separation of concerns
  • Hierarchical CLI flags (master flags control sub-flags)
  • Three interfaces: CLI, Webapp, Claude Code Plugin
  • Git-based workflow with automatic run directories
  • Centralized defaults in src/defaults.ts (single source of truth)

Webapp (pantoum-webapp/)

Architecture

  • React 19 + Fluent UI v9 single-page application, branded PANTOUM Studio
  • Express + WebSocket backend for real-time upgrade streaming
  • Zustand stores for state management
  • Vite for frontend bundling, esbuild for server compilation
  • Ports are centralized in pantoum-webapp/shared/ports.json (currently apiPort: 5200, devPort: 5201). Do not hardcode port numbers — import from there.

Pages (pantoum-webapp/app/src/pages/)

  • HomePage - Hero with ASCII art, quick-action cards (Solutions, Upgrade, Reports, Doctor)
  • SettingsPage - Tabbed settings editor synced with pantoum.settings.yml
  • UpgradePage - Solution selection, upgrade execution with real-time WebSocket log streaming, animated squirrel
  • ReportsPage - Browse and view upgrade reports (JSON/Markdown)
  • AiConsolePage - Launch Doctor (environment health check) and Analyze (post-upgrade analysis) skills with live event streaming

Stores (pantoum-webapp/app/src/stores/)

Store Purpose
settingsStore Settings editor state, synced with pantoum.settings.yml via REST
upgradeStore Upgrade session state, solution selection, log buffers, live status
historyStore Upgrade history index read from pantoum_history/
connectionStore WebSocket connection liveness + reconnection state
themeStore Dark/light theme toggle

Read the full file on GitHub · 559 lines

Changes

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.

  1. 10d ago First seen · 559 lines · 6,800 tokens per session scan A ee287fc035b3

Subscribe to this mod's changes

pantoum CLAUDE.md is an instructions file published in the GitHub repository pantoum-spfx/pantoum (5 stars, last pushed 12d ago), licensed MIT. It adds 6,800 tokens to every session, about $0.0340 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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