Service Registry Skill for Claude
Registers external services with health checks, central config, and unified execution. Use when integrating multiple external services needing coordination.
Install
one command, takes just this skill from the repositorynpx skills add https://github.com/athola/claude-night-market --skill service-registryThe instruction itself
18 sections, as written by the authorTable of Contents
- Overview
- When to Use
- Core Concepts
- Service Configuration
- Execution Result
- Quick Start
- Register Services
- Execute via Service
- Health Checks
- Service Selection
- Auto-Selection
- Failover Pattern
- Integration Pattern
- Detailed Resources
- Exit Criteria
Service Registry
Overview
A registry pattern for managing connections to external services. Handles configuration, health checking, and execution across multiple service integrations.
When To Use
- Managing multiple external services.
- Need consistent execution interface.
- Want health monitoring across services.
- Building service failover logic.
When NOT To Use
- Single service integration without registry needs
Core Concepts
Service Configuration
@dataclass
class ServiceConfig:
name: str
command: str
auth_method: str # "api_key", "oauth", "token"
auth_env_var: str
quota_limits: dict
models: list[str] = field(default_factory=list)
Verification: Run the command with --help flag to verify availability.
Execution Result
@dataclass
class ExecutionResult:
success: bool
stdout: str
stderr: str
exit_code: int
duration: float
tokens_used: int
Verification: Run the command with --help flag to verify availability.
Quick Start
Register Services
from leyline.service_registry import ServiceRegistry
registry = ServiceRegistry()
registry.register("gemini", ServiceConfig(
name="gemini",
command="gemini",
auth_method="api_key",
auth_env_var="GEMINI_API_KEY",
quota_limits={"rpm": 60, "daily": 1000}
))
Verification: Run the command with --help flag to verify availability.
Execute via Service
result = registry.execute(
service="gemini",
prompt="Analyze this code",
files=["src/main.py"],
model="gemini-3-pro"
)
if result.success:
print(result.stdout)
Verification: Run the command with --help flag to verify availability.
Health Checks
# Check single service
status = registry.health_check("gemini")
# Check all services
all_status = registry.health_check_all()
for service, healthy in all_status.items():
print(f"{service}: {'OK' if healthy else 'FAILED'}")
Verification: Run the command with --help flag to verify availability.
Service Selection
Auto-Selection
# Select best service for task
service = registry.select_service(
requirements={
"large_context": True,
"fast_response": False
}
)
Verification: Run the command with --help flag to verify availability.
Failover Pattern
def execute_with_failover(prompt: str, files: list) -> ExecutionResult:
for service in registry.get_healthy_services():
result = registry.execute(service, prompt, files)
if result.success:
return result
raise AllServicesFailedError()
Verification: Run the command with --help flag to verify availability.
Integration Pattern
# In your skill's frontmatter
dependencies: [leyline:service-registry]
Verification: Run the command with --help flag to verify availability.
Detailed Resources
- Service Config: See
modules/service-config.mdfor configuration options. - Execution Patterns: See
modules/execution-patterns.mdfor advanced usage.
Exit Criteria
- Services registered with configuration.
- Health checks passing.
- Execution results properly handled.
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How to use it
Take athola/service-registry from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.