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project-osmos

project-osmos is a skill for Claude Code from microsoft/skills-for-fabric. It costs 104 tokens per session (5,584 once invoked), scanned A, original, MIT.

A workflow for managing long-running Project Osmos tasks in Microsoft Fabric and OneLake. Microsoft Fabric is a cloud data platform, and OneLake is its shared data lake for storing and processing data.

In plain words
What is it for?
Use it to inspect or transform Fabric and OneLake data, create or run Spark notebooks, update lakehouse resources, and track complex remote data-engineering tasks.
Why use it?
It helps coordinate remote data-engineering work that may continue over time instead of treating it like a short local command. It covers status, follow-ups, cancellation, deletion, and required service requests.

Skill for Claude Code ✓ vendor

Written for Claude Code: Claude Code plugin machinery.

Part of the fabric-skills plugin — 25 skills shipped together

not rated 1.3krepo +18 changed yesterday A scan 104 tokens original MIT

Good fit Use it to inspect or transform Fabric and OneLake data, create or run Spark notebooks, update lakehouse resources, and track complex remote data-engineering tasks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/microsoft/skills-for-fabric/project-osmos
View source ↗ microsoft/skills-for-fabric
About the project

Microsoft Fabric Skills is a collection of reusable instructions and MCP systems that help AI assistants work with Microsoft Fabric workloads, APIs, queries, and operations. It is intended for users of GitHub Copilot CLI and compatible coding tools; the catalogue entries are the skills, agents, instructions, MCP systems, plugins, and rules distributed by the project.

microsoft/skills-for-fabric · 1,321 stars · on GitHub

Install

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.

Any agent
npx skills add microsoft/skills-for-fabric --skill project-osmos
Clone the repo
git clone --depth 1 https://github.com/microsoft/skills-for-fabric

Made for: Claude Code.

Or install fabric-skills, the plugin that ships this one along with the rest of its 25 skills.

Wrote 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.

agentmods badge for project-osmos

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/skills-for-fabric/project-osmos/github.svg)](https://agentmods.dev/skills/microsoft/skills-for-fabric/project-osmos)
Your own site
<a href="https://agentmods.dev/skills/microsoft/skills-for-fabric/project-osmos"><img src="https://agentmods.dev/badge/skills/microsoft/skills-for-fabric/project-osmos/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.

agentmods 80×15 button for project-osmos

Your own site · 80×15
<a href="https://agentmods.dev/skills/microsoft/skills-for-fabric/project-osmos"><img src="https://agentmods.dev/badge/skills/microsoft/skills-for-fabric/project-osmos.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,584 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00104 $0.05584
Opus 5.5 $0.00042 $0.02234
Sonnet 5.5 $0.00021 $0.01117
Haiku 4.5 $0.00010 $0.00558

Measured yesterday against content hash c61e745bda13, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

project-osmos 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 yesterday.

The scan reads SKILL.md. This mod also ships 10 executable files (scripts/capacity_preflight.py, scripts/check-instruction-length.py, scripts/launch-task-page.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/fabric-skills/skills/project-osmos/SKILL.md · 223 lines

How it starts

The opening of the file, as written. The whole thing — 223 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Telemetry — MANDATORY. Every api.fabric.microsoft.com call must carry x-ms-fabric-skill: project-osmos (az rest: --headers "x-ms-fabric-skill=project-osmos"), including every LRO poll, fabric_lro and retry. Snippets omit it — add it anyway.

CRITICAL NOTES

  1. To find the workspace details (including its ID) from workspace name: list all workspaces and, then, use JMESPath filtering
  2. To find the item details (including its ID) from workspace ID, item type, and item name: list all items of that type in that workspace and, then, use JMESPath filtering

Project Osmos for Microsoft Fabric

Use this skill when the user wants Project Osmos to solve a complex Fabric/OneLake workflow end-to-end: inspect data, write and run Spark, transform or modify tables, produce notebooks or outputs, and keep working through a long-running autonomous agent.

Scope

Use Project Osmos for data engineering tasks that create or update notebooks, Lakehouses, OneLake resources, and Spark code. Use Microsoft Fabric Skills to discover named workspaces and Lakehouses for Project Osmos and for tasks outside Project Osmos: Power BI dashboards, reports, semantic models, and PBIP artifacts; Fabric Warehouses and T-SQL objects; Eventhouse/KQL, Eventstreams, Dataflows Gen2, and Data Factory pipelines; and general Fabric item, workspace, capacity, deployment, or monitoring operations.

When the user names Project Osmos, use this skill for scope and task-splitting advice too. Bronze/Silver/Gold terminology does not switch an Osmos request to an architecture-planning skill. Keep the complete outcome in one task, not one task per layer or entity; Osmos owns its internal sequencing. Use e2e-medallion-architecture only for architecture work not assigned to Osmos.

When the user asks for examples, use Project Osmos use cases. Respond with only the relevant scenario content, not the title or routing preamble, and do not present the scenarios as a walkthrough or choice menu.

Read the full file on GitHub · 223 lines

Files

What ships with it

29 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. yesterday Changed · +45 lines · +1 tokens per session c61e745bda13
  2. 1mo ago First seen · 178 lines · 103 tokens per session scan A 2c87d7a30036

Subscribe to this mod's changes

project-osmos is a skill published in the GitHub repository microsoft/skills-for-fabric (1,321 stars, last pushed yesterday), licensed MIT. It adds 104 tokens to every session and 5,584 once invoked, about $0.0004 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 2026-09-25.

CloudData and AIDevOps and cloud
Related

project-osmos compared with skills from other repositories

project-osmos next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
project-osmosmicrosoft/skills-for-fabricSkill1.3kyesterdayMITA104Claude Code
tensorrt-llmNousResearch/hermes-agentSkill261kyesterdayMITA18Claude Code, Codex
agent-platform-tuninggoogle/skillsSkill22kyesterdayApache-2.0A64Claude Code, Codex
google-cloud-solution-guided-gke-ai-migrationgoogle/skillsSkill22kyesterdayApache-2.0A157Claude Code, Codex
apigee-agent-gateway-governancegoogle/skillsSkill22kyesterdayApache-2.0A222Claude Code, Codex
modalK-Dense-AI/scientific-agent-skillsSkill56k4d agoMITA65Claude Code, Codex
gke-inferencegoogle/skillsSkill22kyesterdayApache-2.0A119Claude Code, Codex