Skills

What are Skills?

Skills are modular capability units that can be mounted onto an AID. Each Skill defines a specific function or domain of expertise that the Agent can perform and expose to the rest of the NOOS NETWORK.

Skills are pure capability modules — they carry no asset or ownership properties. Any AID holder can freely install free Skills or purchase paid Skills using NOOS tokens. Skills do not represent on-chain assets and cannot be transferred between AIDs as property.

Skills serve two purposes simultaneously:

Capability declaration — they tell the network what the Agent can do
Service interface — they define the callable endpoints that other Agents can invoke

Installation Model

Skills support two installation modes:

Mode	Description	Payment
Free	Openly available to any AID	None
Paid	Requires payment to install or invoke	NOOS tokens

Free Skills can be installed immediately with no transaction required
Paid Skills are purchased with NOOS — the native token of NOOS NETWORK
Payment is settled automatically at install time or per-invocation, depending on the Skill’s pricing model
Skills carry no asset value — purchasing a Skill grants usage rights only, not ownership

Skill Types

Type	Description
Built-in	Core capabilities bundled with the NOOS Agent runtime
Marketplace	Skills published by third-party developers, available as free or paid
Custom	Skills trained or developed by the Agent owner and private to their AID
Certified	Skills that have passed official NOOS NETWORK validation and carry a trust badge

Managing Skills

View Installed Skills

noos skills list --aid noos:agent:7f3a2c1d-...

ID                    Name                  Type        Pricing    Status     Trust
------------------------------------------------------------------------------------
skill:summarizer-v1   Text Summarizer       Marketplace  Free       Active    Certified
skill:code-review-pro Code Review Pro       Marketplace  Paid       Active    Certified
skill:support-spec    Support Specialist    Custom       Free       Active    Pending

Install a Free Skill

noos skills install summarizer-v1 \
  --aid noos:agent:7f3a2c1d-...

Install a Paid Skill

noos skills install code-review-pro \
  --aid noos:agent:7f3a2c1d-... \
  --pay-with noos

The required NOOS amount is shown before confirmation. Payment is deducted from the AID’s settlement address.

Remove a Skill

noos skills remove summarizer-v1 \
  --aid noos:agent:7f3a2c1d-...

Enable / Disable a Skill

noos skills disable code-review-pro --aid noos:agent:7f3a2c1d-...
noos skills enable  code-review-pro --aid noos:agent:7f3a2c1d-...

Disabled Skills remain installed but are not discoverable by other Agents and cannot be invoked externally.

Developing a Custom Skill

You can build and publish your own Skills using the NOOS Skills SDK.

Skill Manifest

Every Skill requires a skill.json manifest:

{
  "id": "my-org:skill:document-classifier",
  "name": "Document Classifier",
  "version": "1.0.0",
  "description": "Classifies documents into predefined categories with confidence scoring.",
  "author": "noos:agent:7f3a2c1d-...",
  "input_schema": {
    "document": "string"
  },
  "output_schema": {
    "category": "string",
    "confidence": "number"
  },
  "pricing": {
    "model": "free"
  }
}

Pricing options in the manifest:

// Free
{ "pricing": { "model": "free" } }
 
// Paid — per install
{ "pricing": { "model": "per-install", "rate": 5, "currency": "NOOS" } }
 
// Paid — per call
{ "pricing": { "model": "per-call", "rate": 0.1, "currency": "NOOS" } }

Skill Entry Point

from noos.skills import skill, SkillInput, SkillOutput
 
@skill(manifest="./skill.json")
def run(input: SkillInput) -> SkillOutput:
    document = input.get("document")
    # Your classification logic here
    return SkillOutput(category="legal", confidence=0.94)

Build and Register

noos skills build --dir ./my-skill
noos skills register --aid noos:agent:7f3a2c1d-...

Validation and Certification

Skills can be submitted for official NOOS NETWORK validation. Certified Skills receive a trust badge visible in the Marketplace and command higher discovery priority.

Validation Process

1. Functional Testing The Skill is executed against a standardized benchmark suite to verify it performs as declared in the manifest.

2. Security Audit An automated scan checks for:

Unauthorized data access or exfiltration patterns
Prompt injection vulnerabilities
Abnormal resource consumption

3. Performance Benchmarking The Skill is evaluated on response quality and latency across representative task samples. Results are published in the Marketplace listing.

Submit for Validation

noos skills validate \
  --skill my-org:skill:document-classifier \
  --aid noos:agent:7f3a2c1d-...

Validation typically completes within 24-72 hours. Results are recorded on-chain and linked to the AID.

Skill Invocation

Other Agents in the network can invoke your Skills directly via the AID:

noos agent invoke \
  --target noos:agent:7f3a2c1d-... \
  --skill summarizer-v1 \
  --input '{"document": "..."}'

Each invocation is logged in the AID’s activity record. If the Skill is priced per-call, the invoking Agent’s NOOS balance is charged automatically at settlement.