Borrowing it
Nothing to install: this file belongs to mrwuss/p21-api-documentation. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/mrwuss/p21-api-documentation/master/CLAUDE.mdgit clone --depth 1 https://github.com/mrwuss/p21-api-documentationWrote 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/instructions/mrwuss/p21-api-documentation/claude-md)<a href="https://agentmods.dev/instructions/mrwuss/p21-api-documentation/claude-md"><img src="https://agentmods.dev/badge/instructions/mrwuss/p21-api-documentation/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>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.
<a href="https://agentmods.dev/instructions/mrwuss/p21-api-documentation/claude-md"><img src="https://agentmods.dev/badge/instructions/mrwuss/p21-api-documentation/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.06407 | $0.06407 |
| Opus 5.5 | $0.02563 | $0.02563 |
| Sonnet 5.5 | $0.01281 | $0.01281 |
| Haiku 4.5 | $0.00641 | $0.00641 |
Grade A, and why
p21-api-documentation 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 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 — 209 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Project: P21 API Documentation
Comprehensive documentation and working examples for all P21 APIs.
Quick Context
This project provides developer-focused documentation for Prophet 21's integration APIs. All content is based on official Epicor SDK documentation and verified working implementations - no guesses or assumptions.
How to Navigate (read this before opening docs)
The numbered docs are the deep manual — several exceed 1,000 lines. Do not read a whole doc for one task. The routing flow is:
- Read this file (you're here).
- Open docs/INDEX.md — a task → section-anchor map.
- Load only the linked section(s) your task needs.
When editing docs, keep INDEX.md's anchors in sync (renaming a heading breaks its index entry), and add an index row for any new task-worthy section.
APIs Covered
| API | Purpose | Use When | Status |
|---|---|---|---|
| OData | Read-only data access via standard OData protocol | Quick reads, reporting, lookups | Working |
| Transaction API | Stateless bulk data manipulation | Bulk creates, keyed updates/upserts, external integrations | Working |
| Interactive API | Stateful window interactions with business logic | Complex workflows, validation needed | Working |
| Entity API | REST CRUD — /api/entity/ (4 entities) plus other endpoint families (e.g. /api/sales/orders) |
Simple record operations on 4 entities | Working (/api/entity/) |
| Inventory REST API | CRUD on inventory items, multi-company workflows | Item reads, appending locations/suppliers | Working (/api/inventory/parts) |
| Production & Labor | Production orders, labor hours, time entry | Manufacturing workflows, labor tracking | Working (Transaction + Interactive) |
| ui/full (web client) | Drives any web-enabled window by menu class name | The window has no service_name — no TAPI/Interactive route |
Working ({ui}/ui/full/) |
| UDT Service API | CRUD on user-defined tables | Custom table maintenance | Working (/udtservice/api/udtdata/) |
| Other REST families | 16 families: UDF metadata, GL, CRM tasks/opportunities/consignment orders, PO headers, inventory (adjustments/movement/counts/scan/serial info), file storage, system info, customer form templates, service orders, exchange rates | UDF discovery, journal-entry reads, task/PO/GL/adjustment/movement/count writes, filesystem access | Reads and writes verified across the platform-level five and the business-object eleven; 3 blocked only by empty tenant config (opportunities, CUO, exchange rates), 2 by an unresolved precondition (tag adjustments, serial extended info) |
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 Changed · +1 lines · +200 tokens per session f02639498833
- 20d ago Changed · +2 lines · +42 tokens per session e3198d2cd187
- 27d ago Changed · +5 lines · +132 tokens per session fc4f79a635ef
- 1mo ago Changed · +1 lines · +110 tokens per session 0b86b35f76d1
- 1mo ago Changed · +3 lines · +259 tokens per session 662696a15a1a
- 1mo ago Changed · +2 lines · +168 tokens per session 9d0a5251b207
- 1mo ago Changed · +16 lines · +1,275 tokens per session cb9b64c7cb0b
- 1mo ago Changed · +3 lines · +312 tokens per session b7e87ed2ea6e
- 2mo ago First seen · 176 lines · 3,909 tokens per session scan A 107712362b8b
p21-api-documentation CLAUDE.md is an instructions file published in the GitHub repository mrwuss/p21-api-documentation (55 stars, last pushed 7d ago), licensed MIT. It adds 6,407 tokens to every session, about $0.0256 per session on Opus 5.5. 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.
p21-api-documentation CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| p21-api-documentation CLAUDE.mdmrwuss/p21-api-documentation | Instructions file | 55 | 7d ago | MIT | A | 6,407 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |