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distributed-step-lock
Design and review distributed locks for agent step transitions. Use when preventing concurrent workers, duplicate resumes, retries, compensation, or external requests from mutating the same task or step state at the same time.
Übersicht
Design and review distributed locks for agent step transitions. Use when preventing concurrent workers, duplicate resumes, retries, compensation, or external requests from mutating the same task or step state at the same time.
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Quelldokumentation, keine Anweisungen für diese Website. Vor dem Ausführen von Befehlen die Berechtigungen prüfen.
Distributed Step Lock
Skill Interface
- Name: distributed-step-lock.
- Description: Design and review distributed locks for agent step transitions when concurrent workers, duplicate resumes, retries, compensation, or external requests may mutate the same task or step state at the same time.
- Parameters: Step identifier, lock owner, TTL, transition guard, allowed state transition, lock store behavior, retry policy, failure behavior, event names, and concurrency verification cases.
- Instructions: Use this skill before changing shared task or step state from multiple runtimes. Acquire a lock, verify owner on release and extension, use compare-and-swap as a second guard, define TTL behavior, and test contention, expiry, owner mismatch, and lock store outage.
Idempotency prevents duplicate side effects for the same key. It does not by itself prevent two workers from racing on the same step transition. Use a lock plus a durable compare-and-swap guard.
Lock Interface
type StepLock = {
acquire(stepId: string, owner: string, ttlMs: number): Promise<boolean>;
release(stepId: string, owner: string): Promise<void>;
extend(stepId: string, owner: string, ttlMs: number): Promise<boolean>;
};
type StepTransitionGuard = {
transition(
stepId: string,
from: StepStatus,
to: StepStatus,
owner: string
): Promise<TransitionResult>;
};
Rules
- Acquire the lock before changing step state.
- Use owner identity when releasing or extending a lock.
- Use a TTL so crashed workers do not create permanent locks.
- Renew the lock for long-running steps.
- Reject release attempts from a different owner.
- Use a database compare-and-swap transition as a second line of defense.
- Emit structured events for lock acquired, contended, extended, released, and expired.
Failure Behavior
- Lock unavailable: return a retryable concurrency result or wait according to policy.
- Lock expired during work: stop mutation or revalidate ownership before committing.
- Durable transition mismatch: do not overwrite; reload state and decide the next action.
- Lock store unavailable: degrade according to safety policy, usually by rejecting mutation rather than allowing unsafe concurrency.
Verification
Test two concurrent workers, owner mismatch on release, TTL expiry after worker crash, lock extension, transition compare-and-swap failure, lock store outage, compensation racing with normal flow, and resume racing with retry.
Dateimetadaten
name: distributed-step-lock description: Design and review distributed locks for agent step transitions. Use when preventing concurrent workers, duplicate resumes, retries, compensation, or external requests from mutating the same task or step state at the same time.
Originaltext anzeigen
---
name: distributed-step-lock
description: Design and review distributed locks for agent step transitions. Use when preventing concurrent workers, duplicate resumes, retries, compensation, or external requests from mutating the same task or step state at the same time.
---
# Distributed Step Lock
## Skill Interface
- Name: distributed-step-lock.
- Description: Design and review distributed locks for agent step transitions when concurrent workers, duplicate resumes, retries, compensation, or external requests may mutate the same task or step state at the same time.
- Parameters: Step identifier, lock owner, TTL, transition guard, allowed state transition, lock store behavior, retry policy, failure behavior, event names, and concurrency verification cases.
- Instructions: Use this skill before changing shared task or step state from multiple runtimes. Acquire a lock, verify owner on release and extension, use compare-and-swap as a second guard, define TTL behavior, and test contention, expiry, owner mismatch, and lock store outage.
Idempotency prevents duplicate side effects for the same key. It does not by
itself prevent two workers from racing on the same step transition. Use a lock
plus a durable compare-and-swap guard.
## Lock Interface
```ts
type StepLock = {
acquire(stepId: string, owner: string, ttlMs: number): Promise<boolean>;
release(stepId: string, owner: string): Promise<void>;
extend(stepId: string, owner: string, ttlMs: number): Promise<boolean>;
};
type StepTransitionGuard = {
transition(
stepId: string,
from: StepStatus,
to: StepStatus,
owner: string
): Promise<TransitionResult>;
};
```
## Rules
- Acquire the lock before changing step state.
- Use owner identity when releasing or extending a lock.
- Use a TTL so crashed workers do not create permanent locks.
- Renew the lock for long-running steps.
- Reject release attempts from a different owner.
- Use a database compare-and-swap transition as a second line of defense.
- Emit structured events for lock acquired, contended, extended, released, and
expired.
## Failure Behavior
- Lock unavailable: return a retryable concurrency result or wait according to
policy.
- Lock expired during work: stop mutation or revalidate ownership before
committing.
- Durable transition mismatch: do not overwrite; reload state and decide the
next action.
- Lock store unavailable: degrade according to safety policy, usually by
rejecting mutation rather than allowing unsafe concurrency.
## Verification
Test two concurrent workers, owner mismatch on release, TTL expiry after worker
crash, lock extension, transition compare-and-swap failure, lock store outage,
compensation racing with normal flow, and resume racing with retry.
Quelle prüfen
Preis und Betriebskosten
- Skill beziehen
- Preis unbestätigt
- Ausführen
- Anforderungen unbestätigt. Agenten-, API- und Dienstkosten an der Quelle prüfen.
- Lizenz
- MIT
- Preis unbestätigt
- Der Preis ist noch nicht bestätigt. Vorhandene Quell- und Installationslinks bleiben verfügbar.
Kostenloser Bezug bedeutet nicht kostenlosen Betrieb. Preise sind keine Sicherheitsbewertung. Preisinformation einreichen →
Skill-Quelle erfasst
Ein Anleitungspfad ist erfasst. Das ist kein Ausführungstest und keine Sicherheits- oder Kompatibilitätsgarantie.
Vor Installation prüfen: Automatische Installation vermeiden
Lizenz: MIT
- Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
- Low GitHub adoption signal
- KI-Prüffreigabe fehlt
- This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
- Quality score needs review
- GitHub adoption: 23 GitHub stars
- Stars/forks activity: 23 stars, 0 forks; issue activity unavailable in current metadata
- Review status: AI review approval is missing
Tools sind Metadatenhinweise, keine getestete Kompatibilität. Prompts sind Vorschläge.
Mit einer kleinen Aufgabe beginnen
- 1Quelle lesen und Eingaben, Ergebnisse, Abhängigkeiten sowie Berechtigungen prüfen.
- 2Agent um einen Plan bitten. Einrichtung und Kosten vor einem isolierten Test genehmigen.
- 3Ergebnisse und geänderte Dateien prüfen. Nur tatsächliche Ausführungen melden und die Quellrevision aufbewahren.
Prüfe Abhängigkeiten, API-Schlüssel und externe Kosten in der Quelle. Öffentliche Repositories bedeuten nicht, dass alle Dienste kostenlos sind.
Quelle und Nutzungshinweise
ErfasstStatisch geprüft
Metadaten und Prüfungen dienen der Orientierung. Beliebtheit, Quellenerfassung und erfolgreiche Ausführung sind verschiedene Fakten.
- Quell-Repository
- HsienW/ai-agent-engineering-playbook
- Lizenz
- MIT
- Version
- Unknown
- Letzter GitHub-Push
- 20. Sept. 2026
- Verzeichnis aktualisiert
- 20. Sept. 2026
Version aus den Verzeichnismetadaten; Releases der Quelle prüfen.
Qualität
55/100
Vielversprechend
Vertrauen
64/100
Nur Sandbox
Audit
75/100
Riskant
- Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
- Low GitHub adoption signal
- KI-Prüffreigabe fehlt
- This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
- Quality score needs review
- GitHub adoption: 23 GitHub stars
- Stars/forks activity: 23 stars, 0 forks; issue activity unavailable in current metadata
- Review status: AI review approval is missing
- Verified installs
- —
- Ergebnisse
- —
Kopieren ist keine Installation. Zahlen benötigen eine Erfolgsmeldung und garantieren keine allgemeine Qualität.
Agent-Zugang
Die Registry API stellt Entscheidungs-, Vertrauens-, Audit-, Use-Case- und Installationssignale ohne UI-Scraping bereit.
Weitere Details
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}Für Ersteller
Quelle des Eintrags
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