Start with your work

Use FPF Library.

Choose how to work with the published texts.

Read and search yourselfUse English task words, a quoted phrase or a known ID. Read the source before applying it.Work with an AI agentConnect MCP, or copy source Markdown into an agent that cannot use MCP.

What is in FPF Library?FPF Library is the collection of the First Principles Framework project's own publications: FPF Core, Domain Principle Frameworks (DPFs), their Suites, and accompanying References and usage materials.How to use the publicationsThis is the common working instruction for people and AI agents using FPF or its DPFs, including work that develops or reviews the frameworks themselves. Apply it whenever the work relies on their methods, not only when…

Share a publication or passage

Use Copy link in an open publication or reading. The address uses published names, such as /MKT, /MKT.4 or /MKT.4:3, and opens the current text after ordinary updates. To share consecutive sections, add an ending name, for example /MKT.4:3?through=MKT.4:5; the last section and its subsections are included.

For a citation to the edition you read, use Source · lines: its GitHub commit and lines stay exact. Continuing a reading stops if the edition changes, with a link to restart.

Find the contribution you need

FPF Core supplies shared concepts and principles across practices. A DPF is a domain principles framework for a particular practice. A DPF Suite brings related publications together; its Reference explains useful connections. Entry guides help you choose and use them.

Start with the actual task and the result you need. Read the relevant passage, its conditions and any supplying methods. You can use one method or a connected account; the catalogue order is not a required learning sequence.

Searching from another language

The sources are primarily English. Ask your assistant to suggest English search terms for the task, then inspect the retrieved passages. Search itself does not translate or generate advice.

Для задачи «управление изменениями» попробуйте английские слова change control или configuration. Уточняйте запрос по найденным разделам; совпадение слов ещё не означает подходящий метод.

A worked route: obtain greenhouse climate control

An equipment company is comparing a ready controller, commissioned development, in-house development with AI assistance and a controller with its own supervisory layer.

Define the same required climate-control result and intended configuration for all options.
Use SYSE.24 to compare acquisition routes. Include integration, support, capability, access and eventual exit alongside price.
Produce an option comparison, evidence needed before choosing and a next action. Name the conditions that could reverse the choice.

This is a constructed source example. Replace its offers, thresholds and evidence with your own. It is not a measured claim about savings or project success.

Read the connected source example

The Reference connects the comparison to system definition, trials, realization and release. Read those supplying methods when your task needs their results.