Intelligentium
NetFabric · Open Source · MIT Licensed

The AI plugin marketplace
for serious agent builders.

Intelligentium is a curated marketplace of skills, agents, hooks, MCP servers, and tools — versioned, deterministic, and installable in one command via APM.

★ View on GitHub Browse Plugins
apm marketplace add netfabric/intelligentium

Built different, on purpose

Every plugin follows the same predictable shape — so your agents can install, compose, and trust them without surprises.

One-command install

Add the marketplace once, then pull any plugin with apm install <plugin>@intelligentium — no manual wiring.

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Deterministic structure

Skills, agents, hooks, MCP servers, and tools all ship in a consistent, versioned layout that's easy to automate around.

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Machine-discoverable

An Agentic Resource Discovery catalog lets other agents and registries find these capabilities programmatically.

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Domain-verified skills

From abstract math to .NET generics to APM authoring — each skill packages battle-tested, scoped domain knowledge.

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Open and auditable

MIT licensed, fully public source. Read exactly what your agents load — nothing hidden, nothing compiled away.

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Kept in sync

CI regenerates the marketplace manifest and discovery catalog on every change, so consumers always see the latest state.

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Python-only scripts

Every skill's automation scripts are normalized to Python — no mixed toolchains to install, so behavior stays deterministic across every consumer.

✨ Featured plugin

Write better skills and agents with agent-authoring

Fifteen skills covering every stage of building AI capabilities: author a single skill or agent, choose the right model for it, orchestrate several into a squad, embed and automate them, search the codebase, build portable agent knowledge and polished terminal interfaces, troubleshoot the harnesses that run them, then polish whatever Markdown they generate. Follow their built-in best practices and you get skills that are both more token-efficient to load and reference, and higher quality — well-triggered, unambiguous, and correctly structured.

1 · Author a skill or a single agent
Quality

create-skill

Codifies compact writing rules, frontmatter constraints, and trigger-phrase description patterns so new skills are discoverable and unambiguous from the first draft.

Structure

agents-md

The open, tool-agnostic format for giving coding agents project context — root and nested files, discovery rules, and migration from other formats.

Automation

Custom agent files

Frontmatter, single-role prompts, and auto-delegation via well-written descriptions — the same trigger-quality bar as skills, one skill per harness:

copilot-cli-custom-agents

Creates .agent.md agents for Copilot CLI — frontmatter fields, tool restrictions, and description-driven auto-delegation.

claude-code-custom-agents

Creates .claude/agents/*.md subagents for Claude Code — frontmatter fields, tool restrictions, and delegation-phrasing conventions.

Cost & capability

model-selection

Chooses and tunes which AI model a custom agent, subagent, or squad node should use — capability tier, cost, speed, prompt-cache cadence, effort tuning, and cross-provider diversity — then maps the choice onto each harness's own field syntax.

2 · Orchestrate them into a squad
Orchestration

agent-graph-orchestration

Design multi-agent squads as a directed graph — sequential, parallel, branching, feedback-loop, and adversarial tribunal-review topologies — then delegate every node's actual file to whichever harness skill owns it.

3 · Embed & automate
Integration

copilot-sdk

Embed the Copilot agent runtime in your own app: sessions, custom tools, hooks, sub-agent delegation, and skill/plugin directories.

CI/CD

copilot-github-actions

Run Copilot CLI safely in workflows — minimal tool allowlisting, auth strategy, and prompt-injection-aware permission scoping.

4 · Search, troubleshoot & observe
Search

ripgrep

Searches files and code with fast literal, regex, glob, and file-type filters, while preferring a fresh code index for structural questions such as symbols, references, call paths, and impact analysis.

Diagnostics

agent-harness-logs

Finds, queries, redacts, and correlates logs, transcripts, and OpenTelemetry traces across Copilot in VS Code, Copilot CLI, Claude Code, Codex, Gemini CLI, and OpenCode — zero-token, script-driven queries instead of pasting raw logs into a prompt.

5 · Build knowledge & interfaces
Portable knowledge

okf

Produces, consumes, validates, and navigates Open Knowledge Format bundles: portable Markdown concept trees with progressive disclosure, linked relationships, provenance, trust, and lifecycle metadata.

Terminal UX

python-tui-apps

Builds polished Python terminal interfaces and skill scripts with Textual and Rich, pairing responsive widgets and accessible keyboard workflows with deterministic --no-tui output for agents and automation.

6 · Polish every generated file
Consistency

markdown-best-practices

Heading hierarchy, list and code-fence conventions, and table formatting so every generated document renders correctly everywhere — the other skill-and-agent-authoring skills all run it before calling a file finished.

Clarity

mermaid-diagrams

Every stable Mermaid diagram type for conveying structure in far fewer tokens than prose — architecture, flows, and schemas included.

Efficiency

toon

Converts JSON/YAML payloads to Token-Oriented Object Notation, cutting the tokens spent on tabular data inside prompts and skill references.

Install the whole plugin, or pull individual skills as you need them.

apm install agent-authoring@intelligentium

The catalog

Ten plugins, ready to install. Each links to its source in the repository.

Sort:

math-foundationsv0.1.0

Released Aug 4, 2026

Core abstract math skills for angles, trigonometry, vectors, and coordinate system conversions.

mathgeometrytrigonometryvectorscoordinates

math-rotationv0.1.0

Released Aug 4, 2026

Abstract math skills for 3D rotation representations, quaternion algebra, and interpolation on manifolds.

mathrotationquaternioninterpolationorientation

math-geodesyv0.1.0

Released Aug 4, 2026

Abstract math skills for geodetic coordinates, reference ellipsoids, and datum transformations.

mathgeodesyellipsoiddatumcoordinates

dotnetv0.8.0

Released Sep 11, 2026

C# and .NET skills for modern language best practices, generic math over System.Numerics, SIMD vectorization, enumerable/LINQ iteration performance, System.Threading.Channels producer-consumer pipelines, BenchmarkDotNet benchmarking, solution/project setup (Directory.Build.props, central package management, SourceLink), file-based apps (dotnet run file.cs, colon directives), and deterministic guardrails for AI code agents (analyzers, hooks, Aspire, testing).

csharpdotnetgeneric-mathsimdlinqchannelsproducer-consumerbenchmarkingaspirecode-agentsfile-based-apps

dotnet-rxv0.1.0

Released Sep 11, 2026

Rx.NET and ReactiveUI skills for composable observable pipelines, concurrency, lifetimes, MVVM state, commands, bindings, and deterministic testing.

csharpdotnetrxreactive-extensionssystem-reactiveobservablesreactiveuimvvmreactive-programmingschedulingtesting

apm-authoringv0.1.0

Released Aug 4, 2026

Skills for authoring, consuming, and publishing APM packages, plus configuring apm-action CI workflows.

apmskillspluginmarketplaceauthoringci

agent-authoringv0.15.0

Released Aug 23, 2026

Skills for authoring AGENTS.md project-context files, SKILL.md agent skills, GitHub Copilot CLI custom agents, Claude Code custom subagents, compact and executable agent-facing Markdown, graph-pattern multi-agent squads/swarms, choosing which AI model an agent should use, building apps with the GitHub Copilot SDK, automating Copilot CLI in GitHub Actions, converting data to/from TOON (Token-Oriented Object Notation) to cut LLM token usage, authoring Mermaid diagrams in markdown files, following general Markdown formatting best practices, searching files and code with ripgrep, producing and consuming Open Knowledge Format bundles, creating polished Python terminal interfaces and skill scripts with Textual and Rich, and finding, querying, and troubleshooting logs, transcripts, and OpenTelemetry traces from coding-agent harnesses.

agents-mdskill-authoringcopilot-cliclaude-codemulti-agentmodel-selectioncopilot-sdkgithub-actionstoonmarkdownmermaidtroubleshooting

agentic-discoveryv0.1.0

Released Aug 4, 2026

Skill for the Agentic Resource Discovery (ARD) open specification for publishing and discovering AI capabilities.

arddiscoverymcpa2aagentscatalog

ucpv0.1.0

Released Aug 5, 2026

Skills for implementing (business/merchant) and consuming (platform/agent) the Universal Commerce Protocol (UCP) for agentic commerce discovery, checkout, and payments.

ucpuniversal-commerce-protocolagentic-commercecheckoutmcpa2aap2payments

codebase-memoryv0.1.2

Released Aug 23, 2026

Skill for installing, verifying, and integrating codebase-memory-mcp (CBM), a local knowledge-graph code intelligence server, into agents, skills, and prompts that operate on a codebase, replacing grep/search/file-read exploration with structural graph queries via its CLI.

codebase-memory-mcpcbmmcpcode-intelligenceknowledge-graphcode-searchcall-graphcyphertree-sittercode-agents

No plugins match your filters.

Agentic Resource Discovery

Intelligentium publishes an ARD v0.9 catalog so agents and registries can discover its plugins and skills programmatically.

https://intelligentium.ai/.well-known/ai-catalog.json