Stagent: The Claude Code Workflow Plugin That Ends the 'Almost Done' Loop

Stagent is an open-source Claude Code plugin developed by WorldStateLabs. It solves the common 'almost done' problem of AI coding assistants through declarative workflow configuration and state machine execution mechanisms. It supports features like real-time web monitoring, cross-device recovery, and template sharing, transforming AI-assisted development from free-form to constrained execution, thereby improving efficiency and process controllability.

When using AI coding assistants (such as Claude Code), developers often face the dilemma where the AI repeatedly claims to be 'almost done' but the code still fails tests, wasting time and API credits. The root cause is that the AI lacks structured workflow constraints and clear completion standards, relying on subjective judgment rather than objective verification.

Stagent drives automatic retry loops through declarative workflows (JSON-configured stages and transition conditions) and a state machine execution model until all validations pass. It supports dual cloud/local modes: cloud mode for state synchronization, real-time monitoring, and cross-device recovery; local mode for offline storage and data privacy friendliness. It has a built-in full development cycle workflow (planning → execution → validation → review → QA → deployment), and the loop can be terminated via normal completion, maximum iterations (default 20), or manual intervention.

Usage examples include starting the default workflow (/stagent:start --flow=cloud://demo ...), running locally offline, creating custom workflows, and using custom templates. The official team provides 12 practical templates (such as rapid prototyping, API-first design, etc.), which can be browsed and reused on the cookbook page.

Applicable scenarios: complex multi-step tasks, team collaboration, long-cycle projects, standardized processes, quality-sensitive projects. Limitations: depends on tools like Claude Code; cloud mode relies on hosting services; complex configurations have a learning curve; automatic retries may consume more API credits.

Stagent transforms AI coding assistants into a 'constrained execution' mode through structured state machine workflows, establishing predictable, auditable, and reproducible AI-assisted development processes. It provides a solution for teams to integrate AI coding assistants into formal workflows, improving development efficiency and delivery quality.