# zig999 > Open-source publisher. Listings imported from github.com/zig999 — credited to the original author with their license. - **Listings:** 39 - **Total installs:** 0 - **Profile:** https://agentstack.voostack.com/s/zig999 - **Website:** https://github.com/zig999 ## Published listings - [U Be Qa Docs](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-be-qa-docs) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-be-qa-docs` Testing types, severity criteria, edge-case checklist, and documentation patterns for back-end QA. Covers unit, integration, and E2E tests for routes, services, repositories, and middleware. Loaded by orchestrator-dev when activating the QA & Docs agent. - [U Spec Templates](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-templates) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-templates` Canonical TEMPLATE.* artifacts for SDD spec writers — domain spec, back spec, front spec, feature spec, flow, component spec, decisions, design-system rules and design-system bundle. Consumed by u-spec-writer, u-spec-back, and u-spec-front, which read templates by path. Resource bundle — no scripts. Not user-invocable. - [U Planning](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-planning) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-planning` Canonical templates and quality rules for backlog generation. Shared by both frontend and backend Planner agents. Provides Epic and Task Contract templates, granularity rules, P0/P1/P2 priority system, dependency map format, and final backlog.md structure. Loaded by orchestrator-dev when activating the Planner agent. - [Orch Infra](https://agentstack.voostack.com/l/skill-zig999-siegard-code-orch-infra) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-orch-infra` Shared infrastructure checks run at the start of every orchestrator cycle — run_preflight.py, run_integrity.py, run_circuit_check.py. Any non-zero exit blocks the cycle with status blocked. Loaded by all orchestrators. Not user-invocable — orchestrators run the scripts directly. - [U Ui Design](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-ui-design) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-ui-design` UI design amplification and audit skill. Reads design-system/tokens.md and visual_personality to apply calibrated design rules. Does not create design systems from scratch. Invoke with "audit" argument to produce a findings report instead of modified code. - [Orch State](https://agentstack.voostack.com/l/skill-zig999-siegard-code-orch-state) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-orch-state` Reduce the event log to derived state. Provides reduce.py (full OrchState JSON), summary.py (compact summary), current_phase.py (active phase), and detect_mode.py (run mode). Single source of derived state for orchestrators (P1/P2 — log is the truth, state is derived). Not user-invocable — orchestrators run the scripts directly. - [U Spec Triage Rules](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-triage-rules) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-triage-rules` Triage skill for the SDD phase. Always runs at SDD phase start via dedicated worker. Detects trigger type (standard /u-spec vs improve /u-improve), classifies the requirement or improvement, identifies affected specs and domains, determines mode_hint and execution_policy, and writes triage.json to the session directory. Orchestrator-sdd reads triage.json to derive effective_mode and dispatch work… - [Phase Dev Rules](https://agentstack.voostack.com/l/skill-zig999-siegard-code-phase-dev-rules) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-phase-dev-rules` Exit criteria checkers and worker routing table for the dev (implementation) phase. Consumed by orchestrator-dev.md to dispatch workers via select_worker.py and evaluate phase transition gates (check_all_impl_tasks_terminal, check_all_deliveries_qa_ready, check_no_open_prohibitions). Not user-invocable — orchestrators call scripts directly. - [U Handoff Validator](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-handoff-validator) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-handoff-validator` Validates a handoff-manifest.yaml against schema and semantic rules before it is consumed by Dev orchestrators. Single source of truth for manifest validation — replaces inline checks in BE and FE orchestrator cores. - [U Fe Standards](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-fe-standards) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-fe-standards` Shared quality standards used by both Developer and QA agents (frontend). Defines mandatory tests per Task Contract type, code quality rules, visual design rules, universal edge-case checklist, and bug severity criteria. Single source of truth to avoid divergence between implementation and verification. - [U Be Templates](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-be-templates) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-be-templates` Canonical artifact templates for backend dev-phase workers — delivery.md, qa-report.md, session-decisions.md, infra-pending-items.md. Consumed by u-be-developer and u-be-qa, which read templates by path when producing per-task artifacts. Resource bundle — no scripts. Not user-invocable. - [Orch Report](https://agentstack.voostack.com/l/skill-zig999-siegard-code-orch-report) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-orch-report` Worker reporting skill — emit task_progress, task_completed, and task_failed events to the orchestration log via emit.py. Event types are restricted by a hard in-code guard-rail; worker identity comes from ORCH_WORKER_ID and cannot be overridden by the caller. Loaded by every worker as its only write path to the log. Not user-invocable. - [U Spec Back Writing](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-back-writing) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-back-writing` Checklist and quality rules for backend specification writing. Used by the Back Spec Agent to ensure completeness and correctness of .back.md artifacts. - [U Improve](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-improve) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-improve` Collects an intentional change description (bug fix, tweak, or enhancement), writes a minimal improve-scope.json to the session directory, declares phases, and hands off to /u-dev. Classification of spec impact, affected files, and execution policy is delegated to u-spec-triage, which runs at SDD phase start. Not responsible for classifying changes. - [U Reverse Spec](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-reverse-spec) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-reverse-spec` Primary reverse engineering skill - defines the mapping between code artifacts and spec artifacts, generation rules, and quality criteria for specs generated from existing code. - [U Reverse Spec Analysis](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-reverse-spec-analysis) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-reverse-spec-analysis` Source code analysis patterns by stack/framework for identifying entities, endpoints, business rules, events, and UI structure. Used by the Reverse Spec Analyzer Agent. - [U Fe Review](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-fe-review) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-fe-review` Ad-hoc audit of a frontend component or feature against all quality rules (code quality, design system, visual design, anti-patterns, accessibility). User-invocable. Produces a structured report; with --fix flag also applies mechanical auto-fixes. - [U Spec Validation](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-validation) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-validation` Cross-validation skill for specs - cross-reference, error code consistency, state coverage, and orphan spec detection. - [Phase Review Rules](https://agentstack.voostack.com/l/skill-zig999-siegard-code-phase-review-rules) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-phase-review-rules` Exit criteria checkers and worker routing table for the review (QA) phase. Consumed by orchestrator-review.md to dispatch QA workers via select_worker.py and evaluate phase transition gates (check_all_qa_verdicts_approved, check_no_open_critical_findings, check_documentation_verified). Includes read_qa_verdict.py helper for verdict extraction. Not user-invocable — orchestrators call scripts direc… - [U Spec Writing](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-writing) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-writing` Specification writing skill - OpenAPI 3.0, domain modeling, use cases, and error mapping. - [U Spec Review](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-review) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-review` Specification review skill - quality checklists, ambiguity detection, and approval/rejection criteria. - [Phase Test Rules](https://agentstack.voostack.com/l/skill-zig999-siegard-code-phase-test-rules) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-phase-test-rules` Exit criteria checkers and worker routing table for the test (automated testing) phase. Consumed by orchestrator-test.md to dispatch test workers via select_worker.py and evaluate phase transition gates (check_all_test_tasks_terminal, check_all_tests_passed, check_no_critical_failures). DLQ tasks block transition. Not user-invocable — orchestrators call scripts directly. - [U Bug Investigator](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-bug-investigator) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-bug-investigator` Root-cause investigation engine for software bugs. Trigger this skill whenever a user is puzzled by incorrect behavior and doesn't know the cause — they observed something wrong and want to understand the mechanism, not get a patch. Use it for: crashes or TypeErrors in specific conditions, services returning wrong status codes for certain inputs, processes that stop silently without errors, memor… - [U Fe Development](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-fe-development) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-fe-development` Coding standards, commit conventions, folder structure, naming rules, and error handling patterns for front-end implementation. Covers React, TypeScript, and feature-based architecture. Loaded by orchestrator-dev when activating the Developer agent. - [U Be Standards](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-be-standards) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-be-standards` Shared quality standards used by both Developer and QA agents (backend). Defines mandatory tests per Task Contract type, universal edge-case checklist, and test quality criteria. Single source of truth to avoid divergence between implementation and verification. - [Phase Sdd Rules](https://agentstack.voostack.com/l/skill-zig999-siegard-code-phase-sdd-rules) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-phase-sdd-rules` Exit criteria checkers and worker routing table for the sdd (Specification-Driven Development) phase. Consumed by orchestrator-sdd.md to dispatch spec workers via select_worker.py and evaluate phase transition gates (check_handoff_manifest_approved, check_all_domains_validated, check_error_codes_synced). Includes check_structural_diff.py to determine if spec changes require domain worker dispatch… - [U Spec Globals](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-spec-globals) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-spec-globals` Project-wide specification globals — conventions.md (naming and identifier prefix rules UC/BR/ST/EV/UI/FL), error-codes.md (global error catalog cross-checked by u-spec-validator), glossary.md (controlled vocabulary). Read by all spec agents and validators by path. Resource bundle — no scripts. Not user-invocable. - [U Fe Templates](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-fe-templates) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-fe-templates` Canonical artifact templates for frontend dev-phase workers — delivery.md, qa-report.md, session-decisions.md, backend-pending-items.md, ui-epic.md. Consumed by u-fe-developer, u-fe-qa, and u-fe-planner, which read templates by path when producing per-task artifacts. Resource bundle — no scripts. Not user-invocable. - [U Ui Brief](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-ui-brief) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-ui-brief` Refine a raw UI request into a detailed, standardized, unambiguous brief ready to be handed to /u-spec (new demand) or /u-improve (change to an existing spec). This skill produces the structured input to the pipeline — it does not produce the specification itself and does not invoke leaf agents. Trigger when an author needs to prepare a UI request (component, screen, or flow) before running the s… - [Orch Log](https://agentstack.voostack.com/l/skill-zig999-siegard-code-orch-log) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-orch-log` Append, read, and verify the append-only orchestration event log (.orch/log.jsonl). Provides append.py (lock + hash chain + schema validation), read.py (filtered queries), and verify.py (hash-chain integrity). Loaded by orchestrators and workers that emit or inspect events. Not user-invocable — callers run the scripts directly. - [U Be Review](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-be-review) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-be-review` Read-only ad-hoc audit of backend code (a file, a directory, or a git diff) against the backend code-review rule registry — correctness, security, layering, API contract, type-safety, conventions, maintainability, explicit prohibitions, engineering principles (SOLID/CLEAN), folder structure, and tests. User-invocable. Emits an ephemeral structured parecer (findings grouped by severity plus a dete… - [Phase Example](https://agentstack.voostack.com/l/skill-zig999-siegard-code-phase-example) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-phase-example` Scaffold template for phase-{name}-rules skills. Copy the directory to phase-{name}-rules, replace {name} placeholders, implement the exit-criteria checkers and select_worker.py routing, and declare exit-criteria.json. Reference template only — never dispatched at runtime. Not user-invocable. - [Orch Cleanup](https://agentstack.voostack.com/l/skill-zig999-siegard-code-orch-cleanup) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-orch-cleanup` Runtime cleanup — garbage-collect orphan blobs (gc_orphan_blobs.py) and purge temporary .orch/ files (purge.py). Pre-conditions enforced before any run — no active workers, log integrity verified. Maintenance use only; never run while a workflow is active. Not user-invocable — callers run the scripts directly. - [U Doc Cleanup](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-doc-cleanup) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-doc-cleanup` Scans documentation files in a project, classifies historical noise (past decisions, incident narratives, version comparisons, changelog sections, trade-off logs), and removes it — leaving only current-state content. Operates in report mode (dry-run) or clean mode (rewrite files). Invoke via /u-doc-cleanup. - [U Worker Compliance](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-worker-compliance) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-worker-compliance` Static analysis validator for worker and orchestrator .md protocol compliance (rules W01–W06 — terminal events, canonical phase values, register_worker arguments, emit.py skill declaration). Run scripts/check_worker.py on .claude/agents/**/*.md before promoting to dist/; enforced in CI by tests/test_worker_compliance_gate.py, which fails the suite on any W01–W06 violation. Not user-invocable — re… - [U Shared Templates](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-shared-templates) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-shared-templates` Schema + example pairs for every cross-agent envelope (handoff-manifest, delivery, qa-verdict, blocked-report, task_contract, validation-result, compliance/security/architecture findings, and others). Single source of truth for inter-agent contracts; consumed by all orchestrators, workers, and u-handoff-validator. Resource bundle — no scripts. Not user-invocable. - [U Fe Qa Docs](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-fe-qa-docs) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-fe-qa-docs` Testing types, severity criteria, edge-case checklist, accessibility verification, and documentation patterns for front-end QA. Covers unit, component, integration (MSW), and E2E tests with Vitest, Testing Library, and Playwright. Loaded by orchestrator-dev when activating the QA & Docs agent. - [U Context Enricher](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-context-enricher) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-context-enricher` Transforms vague software development requests (code, refactor, debug, feature implementation) into structured, unambiguous task specifications optimized for LLM execution. Use this skill only when the user explicitly invokes it via /u-context-enricher, "enrich this context", "prepare this task", or similar explicit invocation. The skill outputs a YAML specification covering scope, constraints, a… - [U Be Development](https://agentstack.voostack.com/l/skill-zig999-siegard-code-u-be-development) — Skill · Free · security-reviewed — `agentstack add skill-zig999-siegard-code-u-be-development` Coding standards, commit conventions, folder structure, naming rules, and error handling patterns for back-end implementation. Covers routes, controllers, services, repositories, models, and middleware. Loaded by orchestrator-dev when activating the Developer agent. --- Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add `.