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The foundation layer for agentic intelligence. Build, secure and operate autonomous AI systems with Promptise Foundry.

pip install promptise

[01] Foundry

  • MCPcast
  • The Promptise Agent
  • Reasoning Engine
  • MCP
  • Agent Runtime
  • Prompt Engineering
  • Execution Engine
  • Agent Identity

[02] Resources

  • Documentation
  • GitHub
  • Guides
  • Learning Paths
  • Questions

[03] Company

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© 2026 Promptise by Manser Ventures. All rights reserved.

Open source · Python

[n.01/06]> guides

AI agent engineering guides, from the first tool call to production.

Practical guides to building AI agents in Python: tools and MCP, memory, guardrails, approvals, observability, testing and deployment, each with runnable code. For everyone else: using AI at work, leading AI adoption and enterprise AI agents. Free, no account needed.

Browse the libraryLearning paths
253
Guides
8
Learning paths
9
Categories
59 h
Hours of reading

01 · Guides

Standalone articles. Each one explains a single technique or idea, with worked examples you can try.

02 · Learning paths

Short courses made of guides in a set order, with what to know first and what you can do after.

03 · Levels

Every guide is marked Beginner, Intermediate or Advanced, so you can start where you are.

Start where you are

I use AI at work →

Prompts that get usable results, safe use of company data, checking answers, role playbooks.

I lead a team →

What AI agents can do, choosing use cases, build vs buy, rollout and ROI.

I evaluate AI for my company →

Maturity model, reference architecture, platform evaluation and governance.

I build AI agents →

Tools and MCP, memory, guardrails, approvals, runtime and deployment, with code.

[n.02/06]> featured

Good places to start.

// 001Intermediate · 9 min

Secure Prompt Engineering: Separate Instructions From Data

Secure prompt engineering: keep untrusted text as data with message roles, delimiters, spotlighting, rules and output schemas. A real before and after.

Prompt SecurityRead →
// 002Intermediate · 9 min

LLM Supply Chain Security: Models, Packages, Data and Tools

LLM supply chain security as a checklist: inventory models, data and tools, pin and verify hashes, load safe formats, check provenance and plan fallbacks.

LLM SecurityRead →
// 003Intermediate · 11 min

LLM Attack Surface: Vectors, Risks and the OWASP Top 10

The LLM attack surface explained: user apps, integrations, APIs, data stores, insiders and supply chain, the common attack vectors, and the OWASP Top 10.

LLM SecurityRead →
// 004Intermediate · 8 min

LLM Agent Orchestration Patterns: Supervisor, Handoff

LLM agent orchestration patterns: single agent, chaining, routing, supervisor-workers and handoffs. When each fits and what the controller must enforce.

LLM SystemsRead →
// 005Intermediate · 8 min

ReAct Agent From Scratch in Python: The Reason-Act Loop

Build a ReAct agent from scratch in Python: the Thought, Action, Observation loop, a 60-line controller with a real trace, and how it maps to tool calling.

Prompt EngineeringRead →
// 006Beginner · 7 min

What Is Prompt Engineering? A Beginner's Guide with Examples

What prompt engineering is, how a prompt works, and the five parts of a good one, with a real before-and-after example and a map of the beginner path.

Prompt EngineeringRead →
[n.03/06]> topics

Building AI agents, topic by topic.

Each topic page explains the idea, then lists its guides in the order to read them, with links to the matching documentation.

  • // 019 guidesBuilding AI agents in PythonHow an AI agent works and how to build one in Python: the loop, the harness, the system prompt, the model and the config.
  • // 0215 guidesModels and providersHow to choose a model for an AI agent and run the same agent on Claude, Gemini, Azure OpenAI, OpenRouter or a local Ollama model.
  • // 0340 guidesTools and the Model Context Protocol (MCP)Give agents tools through the Model Context Protocol: build MCP servers in Python, connect them to agents, secure, test and scale them.
  • // 0413 guidesMemory, context and RAGDecide what an agent knows on each turn: context engineering, long-term memory, agentic RAG and semantic caching.
  • // 057 guidesAgent reasoning patternsHow agents think through a task: ReAct loops, plan-and-execute, code actions, reflection and agents that improve themselves.
  • // 066 guidesMulti-agent systemsWhen one agent is not enough: split work across specialised agents and coordinate them with supervisors, handoffs and debate.
  • // 0728 guidesGuardrails and securityKeep agents safe in production: guardrails, prompt-injection defence, sandboxed code, agent identity, multi-tenancy and audit logs.
  • // 087 guidesHuman approvals (human-in-the-loop)Let people approve what matters: approval gates on risky tool calls, avoiding approval fatigue, and notifications over Slack and webhooks.
  • // 0911 guidesObservability and debuggingSee what an agent did and why: trace model and tool calls, fix agents stuck in loops, and monitor MCP servers.
  • // 1011 guidesCost control and rate limitsKeep agent spend predictable: token budgets, per-client rate limits, semantic caching and smaller tool lists.
  • // 1118 guidesTesting and evalsCheck that agents and prompts keep working: evals with graders, pytest for prompts and agents, and tests for MCP servers.
  • // 1242 guidesRuntime, triggers and deploymentRun agents beyond a single request: schedules and webhooks, crash recovery, background jobs and production deployment.
  • // 1319 guidesFrameworks and comparisonsChoose your tools: agent frameworks side by side, LangChain and FastMCP alternatives, guardrail libraries compared, which model to use, and MCP versus LangChain or a plain CLI.
  • // 1421 guidesAI at workUse ChatGPT, Claude, Gemini and Copilot well at work: prompts that get usable results, safe handling of company data, checking answers, and playbooks by role.
  • // 1515 guidesAI for leadersFor managers and executives: what AI agents can do today, how to choose use cases, build or buy, roll AI out to a team and measure the return.
  • // 1613 guidesEnterprise AI agentsFor IT, security and platform leads: a maturity model, a reference architecture, a platform evaluation checklist and operational governance for AI agents.
[n.04/06]> ways in

Browse by topic, level or category.

Categories

  • AI Engineering147 guides→
  • Prompt Engineering54 guides→
  • AI at Work18 guides→
  • AI Leadership12 guides→
  • LLM Security10 guides→
  • Enterprise AI8 guides→
  • Prompt Security2 guides→
  • LLM Systems1 guide→
  • Image Generation Prompting1 guide→

Levels

BeginnerNo experience needed75 guides →IntermediateYou've written prompts before140 guides →AdvancedYou build with LLMs38 guides →

Topics

  • Tool Calling34
  • Authentication and Access Control20
  • Prompt Injection20
  • LLM Mental Models19
  • Hallucinations18
  • Prompt Writing Basics16
  • Reliability and Fallbacks14
  • Context Engineering12
  • RAG (Retrieval-Augmented Generation)12
  • AI Governance11
  • Structured Outputs11
  • Audit Logging and Monitoring10
  • Grounding and Citations9
  • System Prompt Leakage9
  • How LLMs Work8
  • Multi-Tenancy8
  • Output Validation8
  • Agent Loop7
  • Uncertainty and Confidence7
  • Code Execution and Sandboxing6
  • Style and Tone Control6
  • System Prompts6
  • Agent Harness5
  • Chain-of-Thought5
  • LLM Supply Chain Security5
  • LLM-as-a-Judge5
  • Self-Correction and Reflection5
  • Summarization5
  • Coding Agents4
  • Decision Models4
  • LLM Caching4
  • Rate Limiting4
  • OpenAPI and REST APIs3
  • Prompt Optimization3
  • Role Prompting3
[n.05/06]> learning paths

Prefer a course? Follow a learning path.

A learning path is a set of guides in a fixed order, like a short course. Each one says what to know before you start, the skills you build and what you can do at the end.

[01] pathAdvanced

Advance Prompt Engineering

This path teaches you to design prompts that do more than generate answers. They reason, verify, adapt and collaborate. You’ll learn how to build workflows that reduce errors, create consistency, and scale across complex tasks. Each guide combines theory with practice, so you’ll not only understand the techniques but also test them in small labs that make the difference visible. By the end, you’ll know how to turn a single model into a reliable system: one that can explain its steps, double-check its own work, and even coordinate multiple reasoning strategies before deciding on the best answer.

23 lessons · 4 hOpen →
[02] pathIntermediate

Agentic Engineering with Promptise Foundry

The complete path to building AI agents in Python with Promptise Foundry, from your first agent to production. You start with what an agent is and how to build one, give it tools through the Model Context Protocol, add memory and retrieval, and choose reasoning patterns. Then you make it safe and dependable: guardrails, prompt injection defense, human approvals, tracing and debugging, cost limits and evals. The path ends with running agents in production: triggers, crash recovery, deployment and the promptise run project runner. Every guide explains one concept and shows runnable code.

100 lessons · 35.2 hOpen →
[03] pathBeginner

AI at Work: A Free Course for Everyday Tasks

A free, practical course for anyone who uses ChatGPT, Claude, Gemini or Copilot at work. You learn to write prompts that get usable results for emails, summaries, meeting notes, reports and analysis; to keep company data safe; and to check AI answers before you rely on them. Role playbooks show the same skills applied to HR, marketing, sales and finance. No technical background needed.

13 lessons · 2.6 hOpen →
[04] pathBeginner

AI for Leaders: Adopting AI and AI Agents Well

For team leads, managers and executives who decide where AI goes in their organization. You learn what AI agents can and cannot do today, how to pick use cases with a scorecard, when to build and when to buy, how to roll AI out to a team in 90 days, and how to measure whether it pays off. Every guide ends with a tool you can copy: a scorecard, a decision table, a rollout plan or an ROI worksheet.

11 lessons · 2.4 hOpen →
[05] pathIntermediate

Enterprise AI Agents: Evaluate, Design and Govern

For IT, security, platform and architecture leads bringing AI agents into a large organization. You assess where you stand with a maturity model, learn a vendor-neutral reference architecture, evaluate platforms with a weighted scoring sheet, and set up operational governance: owners, approvals, limits, logging and reviews. The path ends with what an agent runtime is and what to check before an agent goes live.

10 lessons · 2.3 hOpen →
[06] pathBeginner

Introduction to Prompt Engineering

This path takes a true beginner from “I asked… it guessed” to “I ask clearly and get dependable results.” You’ll learn why language models follow structure more than intent, how to give them the right context, and how to lock the shape of outputs so they’re paste-ready. Along the way you’ll practice quick checks that reduce hallucinations, add gentle reasoning, and shape tone without losing accuracy. The last modules introduce multimodal basics and a tiny step into retrieval so you can ground answers in your own material. Everything is hands-on, narrative-first, and easy to reuse at work.

17 lessons · 2.7 hOpen →
[07] pathAdvanced

LLM Security Course: Prompt Injection to Red Teaming

A free LLM security course for developers and security teams, from how LLM attacks work to defending production systems. You learn the main attack vectors (prompt injection, data leakage, unsafe output), how to structure prompts and validate input and output, how to red-team your own system, and how to monitor and respond when something goes wrong. Each lesson is a hands-on guide with examples you can run.

16 lessons · 5.8 hOpen →
[08] pathIntermediate

Mental Models: How to Think with LLMs

This path helps you shift from using prompts to thinking like a prompt engineer. Instead of teaching techniques, it introduces mental models. These are ways of seeing and reasoning about large language models. Each guide is a mindset essay with visual diagrams and reflection prompts that sharpen your intuition, inspire creativity, and build the resilience needed to invent new solutions. By the end, you’ll think like a builder, a critic, and a collaborator with AI.

19 lessons · 2.7 hOpen →
[n.06/06]> latest

Recently published.

All 253 guides
  1. Oct 23, 2026Tool Parameters Array Type Must Have Items: The FixFix the tool parameters array type must have items error: why VS Code and strict providers reject MCP tool schemas, and how to fix and test them.Intermediate · 12 min
  2. Oct 23, 2026SPIFFE vs AWS IAM Roles vs Entra ID for AI AgentsSPIFFE vs AWS IAM roles vs Entra ID for AI agents: what an SVID is, how each gives an agent its own identity, and how to federate them, with runnable code.Advanced · 18 min
  3. Oct 23, 2026Who Decides When an AI Agent Is Done? Checks and JudgesWho decides when an AI agent is done? Stop conditions, self-checks, success criteria in code, a separate LLM judge and budgets as a backstop, with code.Intermediate · 16 min
  4. Oct 23, 2026ReAct Agent Pattern: Tool Execution Loop Explained SimplyThe ReAct agent pattern explained simply: what an agent does after it calls a tool, a loop written by hand, the same agent in Promptise, where it breaks.Beginner · 14 min
  5. Oct 23, 2026Policy as Code for AI Agent Tool Calls: OPA vs ApprovalPolicy as code for AI agent tool calls: when deterministic rules beat human approval or model judgment, and how to check each call with OPA before it runs.Advanced · 20 min
  6. Oct 23, 2026LangChain Multi-Tenant Isolation: Tenants, Quotas, MemoryLangChain multi-tenant isolation: what LangChain and LangGraph provide, what you build yourself, per-tenant rate limits and quotas, and the Promptise way.Advanced · 20 min
  7. Oct 23, 2026Scheduled AI Agent With Push Notifications (ntfy, Pushover)Build a scheduled AI agent with push notifications: a cron trigger, a notify tool for ntfy or Pushover, budgets, and alerts only when something changed.Intermediate · 18 min
  8. Oct 23, 2026How to Revoke an AI Agent's Credentials: Incident StepsHow to revoke an AI agent's credentials: stop the agent, revoke API keys, OAuth tokens, cloud roles and MCP keys, end sessions, verify and audit.Intermediate · 18 min

From prompts to production agents.

The guides teach the techniques. Promptise Foundry, our open-source Python framework, turns them into software: typed prompts, governed agents, real MCP servers.

Promptise FoundryQuestions