Prismer Cloud is an infrastructure layer for AI agents that provides shared learning, compressed context, persistent memory, collaboration, messaging, tasks, identity, and workspaces. It is for agents and the people building or using long-running agent systems that need information and outcomes to persist across sessions. The catalogue entries provide skills, hooks, agents, instructions, and a plugin for using Prismer Cloud.
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 skills add Prismer-AI/PrismerCloud --skill pkf-writinggit clone --depth 1 https://github.com/Prismer-AI/PrismerCloudWrote 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/prismer-ai/prismercloud/pkf-writing)<a href="https://agentmods.dev/skills/prismer-ai/prismercloud/pkf-writing"><img src="https://agentmods.dev/badge/skills/prismer-ai/prismercloud/pkf-writing/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/skills/prismer-ai/prismercloud/pkf-writing"><img src="https://agentmods.dev/badge/skills/prismer-ai/prismercloud/pkf-writing.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 | $0.00078 | $0.04071 |
| Opus 5.5 | $0.00031 | $0.01628 |
| Sonnet 5.5 | $0.00016 | $0.00814 |
| Haiku 4.5 | $0.00008 | $0.00407 |
Grade A, and why
pkf-writing 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.
How it starts
The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.
pkf-writing
PKF is the workspace long-content format: sanitized HTML plus frontmatter,
typed links, and controlled media/data/math/interactive elements. This skill
owns PKF authoring and carrier discipline. The memory skill decides what to
remember and where; domain workflows decide when a deliverable is required.
Choose exactly one carrier
| Carrier | Authority | Validation, persist, and readback | Reply |
|---|---|---|---|
| Message inline | PKF bytes delivered mechanically by pkf_reply_inline; the attached inline ContentBlock is durable with the message |
validate the complete file BEFORE the call; the Runtime re-reads, re-validates, and attaches it for you; inspect the extracted/rendered receipt | Markdown projection is the reply text; never paste sentinel comments, never attach the .pkf as a file |
Library .pkf Asset |
Library asset bytes + content hash/revision + scoped URI | dependency-free: host Library writer; dependency-bearing: atomic pkf_bundle_commit; read back authoritative root and graph |
link the root asset and include a short projection |
| Memory Page | Memory Page body + page revision | ask memory to choose/create the page; validate before its domain writer; read back the page and revision |
summarize the remembered fact and canonical page |
Carrier authority is exclusive. Markdown projection is a readable derivative, never canonical authority. Never report success from local draft bytes alone. When the user asks for an article/report in chat and does not explicitly ask for a downloadable file or Memory page, choose Message inline. Do not create an attachment merely because the task workspace exposes an artifacts folder.
Message-inline delivery (pkf_reply_inline)
Deliver mechanically, never by pasting wire bytes: save the validated PKF to a file in
the task scratch dir, then call pkf_reply_inline({"path":"memo.pkf"}) exactly once and
reply in Markdown projection; the Runtime attaches the ContentBlock. If validation is
not green, do not deliver at all.
Never paste sentinel comments into the reply; never attach the .pkf as a file; the
Runtime still extracts the bytes between the two sentinels
<!-- prismer-pkf:inline:start --> / <!-- prismer-pkf:inline:end --> for legacy agents that predate the tool — do not hand-write that region.
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.
- 10d ago First seen · 259 lines · 78 tokens per session scan A 85546f842edc
pkf-writing is a skill published in the GitHub repository Prismer-AI/PrismerCloud (1,555 stars, last pushed 9d ago), licensed MIT. It adds 78 tokens to every session and 4,071 once invoked, about $0.0003 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 2026-09-29.
Other skills, from other repositories
Read, extract, merge, split, rotate, watermark, create, fill, encrypt, decrypt, and OCR PDF files. Use when the user mentions PDFs or needs any document workflow centered on .pdf files.
markitdown
Convert files and office documents to Markdown, including PDFs, Office files, images with OCR, audio with transcription, HTML, archives, and structured data. Use when the user needs markdown extraction or document-to-markdown conversion.
docx
Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files). Triggers include: any mention of 'Word doc', 'word document', '.docx', or requests to produce professional documents with formatting like tables of contents, headings, page numbers, or letterheads. Also use when…
oma-pdf
Extract PDF text, headings, tables, and images into Markdown using opendataloader-pdf. Use for PDF parsing, not PDF layout creation.
slides
Create and edit presentation slide decks (.pptx) with PptxGenJS, bundled layout helpers, and render/validation utilities. Use when tasks involve building a new PowerPoint deck, recreating slides from screenshots/PDFs/reference decks, modifying slide content while preserving editable output, adding…
taxonomy-vto
A reference guide for diagnosing visual problems in LaTeX research papers. It defines categories such as wasted page space, misplaced figures, inconsistent formatting, overflow, alignment, and template-migration issues.