npx claudepluginhub sd0xdev/sd0x-dev-flowHarness engineering for Claude Code — hook-enforced dual review, state-machine gates, and fail-closed safety where it counts. 90 skills, 15 agents, 8 lifecycle hooks.
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AI can ship fast. But without guardrails, velocity is terrifying.
Quality gates that AI can't skip. A Claude Code plugin with hook-enforced dual review, auto-fix loops, and fail-closed semantics — so your code ships fast and ships right.
87 skills · 15 agents — ~4% of Claude's context window
| Without guardrails | With sd0x-dev-flow |
|---|---|
| AI skips review when context is long | Hook-enforced: stop-guard blocks incomplete reviews |
| Single reviewer misses issues | Dual dispatch: Codex + secondary in parallel |
| "Fixed it" without re-verification | Auto-loop: fix → re-review → pass → continue |
| Review state lost after compact | State tracking: SessionStart hook re-injects |
# Install plugin
/plugin marketplace add sd0xdev/sd0x-dev-flow
/plugin install sd0x-dev-flow@sd0xdev-marketplace
# Configure your project
/project-setup
One command auto-detects framework, package manager, database, entrypoints, and scripts. Installs a subset of rules and hooks; the full plugin bundles 14 rules + 9 hooks.
Use --lite to only configure CLAUDE.md (skip rules/hooks).
flowchart LR
P["🎯 Plan"] --> B["🔨 Build"]
B --> G["🛡️ Gate"]
G --> S["🚀 Ship"]
P -.- P1["/codex-brainstorm<br/>/feasibility-study<br/>/tech-spec"]
B -.- B1["/feature-dev<br/>/bug-fix<br/>/codex-implement"]
G -.- G1["/codex-review-fast<br/>/precommit<br/>/codex-test-review"]
S -.- S1["/smart-commit<br/>/push-ci<br/>/create-pr<br/>/pr-review"]
The auto-loop engine enforces quality gates automatically — after code edits, the review command dispatches dual review (Codex MCP + secondary reviewer in parallel) in the same reply. Findings are deduplicated, severity-normalized, and aggregated into a single gate. In strict mode, hooks enforce fail-closed semantics: if the aggregate gate is incomplete, stop-guard blocks. See docs/hooks.md for mode and dependency details.
sequenceDiagram
participant D as Developer
participant C as Claude
participant X as Codex MCP
participant T as Secondary Reviewer
participant H as Hooks
D->>C: Edit code
H->>H: Track file change
C->>H: emit-review-gate PENDING
par Dual Review
C->>X: Codex review (sandbox)
and
C->>T: Task(code-reviewer)
end
X-->>C: Findings (primary)
T-->>C: Findings (secondary)
C->>C: Aggregate + dedup + gate
C->>H: emit-review-gate READY/BLOCKED
alt Issues found
C->>C: Fix all issues
C->>X: --continue threadId
X-->>C: Re-verify
end
C->>C: /precommit (auto)
C-->>D: ✅ All gates passed
Note over H: Strict mode: incomplete gate → blocked
v2.0 dispatches two independent reviewers in parallel — dual-review by default with degraded fallback modes:
| Reviewer | Role | Fallback |
|---|---|---|
| Codex MCP | Primary (sandbox, full diff) | Single-reviewer mode if unavailable |
| Secondary (pr-review-toolkit) | Confidence-scored review | strict-reviewer → single mode |
Findings are severity-normalized (P0-Nit), deduplicated (file + issue key, ±5 line tolerance), and source-attributed (codex | toolkit | both).
Gate: ✅ Ready or ⛔ Blocked — in strict mode, incomplete gate = blocked.
| Capability | sd0x-dev-flow | gstack | Generic prompts |
|---|---|---|---|
| Enforced review gates | Hook + behavior layer | Suggestion only | None |
| Dual-reviewer | Codex + secondary (parallel) | Single /review | None |
| Auto-fix loop | Fix → re-review → pass | Manual | None |
| Multi-agent research | /deep-research (3 agents) | None | None |
| Adversarial validation | Nash equilibrium debate | None | None |
| Self-improvement | Lesson log + rule promotion | /retro stats only | None |
| Cross-tool support | Codex/Cursor/Windsurf | Claude/Codex/Gemini/Cursor | N/A |
| Good Fit | Not Ideal |
|---|---|
| Solo or small-team projects with Claude Code | Teams not using Claude Code |
| Projects needing automated review gates | One-off scripts with no CI |
| Codex CLI / Cursor / Windsurf users (skills subset) | Projects requiring custom LLM providers |
| Repos where quality gates prevent regressions | Repos with no test infrastructure |