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Replace 'dark provenance' / constraint-based / Z3 messaging with what Speckl actually does: state machine compilation to 5 auditable artifacts (PROV-O, CycloneDX, SPDX, TypeScript, WASM). Update code example from old 'speck' syntax to current 'spec' / state / init / action keywords. Add pipeline grid, real examples (TwoPhaseCommit, Paxos, Raft, Forgejo workflow), strategy ladder with completion status, quickstart section with real CLI commands. The old landing page described a completely different product — one that didn't exist. This version accurately reflects the compiler, examples, and whitepaper v2 that are actually built and working.
445 lines
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445 lines
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<title>Speckl — A Judgement Transport Utility for AI-Generated Specifications</title>
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<meta name="description" content="Speckl bridges the gap between what you specify and what gets built. State machine specs compile to auditable code — TypeScript, WASM, and provenance artifacts. NIST SA-11 human-in-the-loop for AI-generated outputs.">
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<link rel="canonical" href="https://speckl.scoble.me/">
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<meta property="og:title" content="Speckl — Judgement Transport for AI Specifications">
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<meta property="og:description" content="State machine specs → auditable code. Compile SpeckDL to TypeScript + WASM + provenance artifacts. Open source (MIT).">
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@media (max-width: 768px) {
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.hero { padding: 4rem 1rem 2.5rem; }
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.hero h1 { font-size: 2rem; }
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.pipeline-grid { grid-template-columns: 1fr; }
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section { padding: 3rem 1rem; }
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</style>
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</head>
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<body>
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<header class="hero">
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<div class="hero-content">
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<h1>Speckl</h1>
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<p class="hero-subtitle">A Judgement Transport Utility</p>
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<p class="hero-tagline">
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Your specification is the source of truth. Speckl ensures what gets built — by humans or AI — stays faithful to what you specified. Compile state machine specs into auditable code with embedded provenance.
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</p>
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<div class="hero-cta">
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<a href="https://os.scoble.me/forgejo/sscoble/speckl" class="btn btn-primary">Source →</a>
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<a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/docs/whitepaper-v2.md" class="btn btn-secondary">Whitepaper v2</a>
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<a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/docs/speckl-by-example.md" class="btn btn-secondary">Tutorial</a>
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</div>
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</div>
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</header>
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<section id="what">
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<h2>What Speckl Does</h2>
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<p>Speckl is a <strong>compiler for state machine specifications</strong>. You write what your system should do in SpeckDL — a typed specification language with states, actions, invariants, and guard conditions. The compiler produces <strong>five auditable artifacts</strong> from a single spec:</p>
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<div class="pipeline-grid">
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<div class="pipeline-step">
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<div class="icon">📜</div>
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<h4>PROV-O</h4>
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<p>W3C audit trail — who said what, when</p>
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</div>
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<div class="pipeline-step">
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<div class="icon">📦</div>
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<h4>CycloneDX</h4>
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<p>Software Bill of Materials</p>
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</div>
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<div class="pipeline-step">
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<div class="icon">📋</div>
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<h4>SPDX</h4>
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<p>License & compliance metadata</p>
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</div>
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<div class="pipeline-step">
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<div class="icon">⚡</div>
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<h4>TypeScript</h4>
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<p>Runnable state machine class</p>
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</div>
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<div class="pipeline-step">
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<div class="icon">🔧</div>
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<h4>WASM</h4>
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<p>Verified WebAssembly binary</p>
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</div>
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</div>
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<p><strong>Fulfills NIST SA-11</strong> (human-in-the-loop for automated outputs) — every AI-generated or hand-written spec is compiled through a deterministic pipeline. No LLMs in the compiler. Same input, same output, every time.</p>
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<ul class="check-list">
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<li>Provenance is <strong>embedded by construction</strong> — not bolted on after the fact</li>
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<li>41 tests passing, < 2 seconds to run the full suite</li>
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<li>11 example specks: ToggleSwitch → TwoPhaseCommit → Paxos → Raft</li>
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<li>Dual-target: TypeScript state machine classes + verified WASM from the same spec</li>
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<li>Zero external services — everything runs locally</li>
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</ul>
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</section>
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<section id="speckdl">
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<h2>SpeckDL by Example</h2>
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<p>SpeckDL is a typed specification language for state machines. Define your states, actions, preconditions, and mutations — the compiler handles the rest.</p>
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<div class="code-block"><pre><span class="cm">// A simple toggle switch — compiles to TypeScript + WASM + 3 provenance artifacts</span>
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<span class="kw">spec</span> <span class="ty">ToggleSwitch</span> {
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<span class="kw">type</span> <span class="ty">Status</span> = <span class="ty">enum</span> { <span class="st">On</span>, <span class="st">Off</span> }
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<span class="kw">state</span> {
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<span class="fn">status</span>: <span class="ty">Status</span> = <span class="ty">Status</span>.<span class="st">Off</span>
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}
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<span class="kw">init</span> <span class="fn">Start</span>() {
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<span class="kw">set</span> status = <span class="ty">Status</span>.<span class="st">On</span>
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}
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<span class="kw">action</span> <span class="fn">Flip</span>() {
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<span class="kw">require</span> status == <span class="ty">Status</span>.<span class="st">On</span>
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<span class="kw">set</span> status = <span class="ty">Status</span>.<span class="st">Off</span>
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<span class="kw">emit</span> <span class="st">"TurnedOff"</span>
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}
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<span class="kw">action</span> <span class="fn">FlipBack</span>() {
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<span class="kw">require</span> status == <span class="ty">Status</span>.<span class="st">Off</span>
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<span class="kw">set</span> status = <span class="ty">Status</span>.<span class="st">On</span>
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<span class="kw">emit</span> <span class="st">"TurnedOn"</span>
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}
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<span class="kw">invariant</span> <span class="st">"At most one pending action"</span> {
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<span class="op">!</span>(status == <span class="ty">Status</span>.<span class="st">Flip</span> && <span class="op">!</span>(status == <span class="ty">Status</span>.<span class="st">FlipBack</span>))
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}
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}</pre></div>
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<p style="text-align:center; margin-top:1rem;">
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<strong>Type system:</strong> Int · Float · Bool · String · Enum · Struct · List<T> · Set<T> · Map<K,V> |
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<strong>Keywords:</strong> spec · type · state · init · action · require · set · emit · invariant
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</p>
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</section>
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<section id="examples">
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<h2>Real Examples</h2>
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<div class="examples-grid">
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<div class="example-card">
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<h4>Two-Phase Commit</h4>
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<div class="meta">45 lines · 5 actions</div>
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<p>Classic distributed transaction coordinator. Voting phase, commit phase, abort path — fully specified with guard conditions.</p>
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</div>
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<div class="example-card">
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<h4>Paxos</h4>
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<div class="meta">120 lines · 3 safety invariants</div>
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<p>Consensus for unreliable networks. Prepare, promise, accept, commit — with "only one value chosen" invariant.</p>
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</div>
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<div class="example-card">
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<h4>Raft</h4>
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<div class="meta">230 lines · 8 actions · 3 invariants</div>
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<p>Leader election, log replication, safety. The largest SpeckDL spec — demonstrates composition at scale.</p>
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</div>
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<div class="example-card">
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<h4>Forgejo Issue Workflow</h4>
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<div class="meta">9 actions · 8 guard conditions</div>
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<p>Real-world state machine: create → assign → review → merge → close. 5 temporal verification conditions.</p>
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</div>
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<div class="example-card">
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<h4>Access Control</h4>
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<div class="meta">RBAC system · clean TS output</div>
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<p>Role-based access with role addition, removal, and permission checks. One of 5 examples with zero TypeScript errors.</p>
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</div>
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<div class="example-card">
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<h4>+ 6 more</h4>
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<div class="meta">DrugDosageCalculator · PaymentService · RetryHandler · TemperatureMonitor · AccountLedger · TigerBeetle</div>
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<p><a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/examples">Browse all 11 examples →</a></p>
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</div>
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</div>
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</section>
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<section id="strategy">
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<h2>Strategy Ladder</h2>
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<p>Speckl follows a four-step strategy — each step validates the market before building the next:</p>
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<div class="strategy-ladder">
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<div class="strategy-step">
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<div class="phase">Plan A</div>
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<div class="label">Open Standard</div>
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<div class="status">✅ Complete</div>
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<p style="font-size:0.8rem;">MIT license. SpeckDL language + compiler + whitepaper — all public.</p>
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</div>
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<div class="strategy-step">
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<div class="phase">Plan B</div>
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<div class="label">Consulting</div>
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<div class="status">🔄 Drafted</div>
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<p style="font-size:0.8rem;">Help regulated teams adopt spec-first workflows. One-pager ready.</p>
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</div>
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<div class="strategy-step">
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<div class="phase">Plan C</div>
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<div class="label">Developer Tool / SaaS</div>
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<div class="status">🔮 Future</div>
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<p style="font-size:0.8rem;">Self-serve spec validation, CI/CD integration, team collaboration.</p>
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</div>
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<div class="strategy-step">
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<div class="phase">Plan D</div>
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<div class="label">Compliance API</div>
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<div class="status">🔮 Future</div>
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<p style="font-size:0.8rem;">Automated audit reports, traceability matrices, regulatory filings.</p>
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</div>
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</div>
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</section>
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<section id="quickstart">
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<h2>Try It</h2>
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<div class="code-block"><pre><span class="cm"># Clone the repo</span>
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git clone https://os.scoble.me/forgejo/sscoble/speckl.git
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<span class="kw">cd</span> speckl/compiler
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<span class="cm"># Build and run tests (41 tests, ~2s)</span>
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npm install
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npm test
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<span class="cm"># Compile a spec to all 5 artifacts</span>
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node dist/index.js ../examples/TwoPhaseCommit.speck -o out/twophase
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<span class="cm"># Check TypeScript validity</span>
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npx tsc --noEmit -p out/twophase
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<span class="cm"># Validate WASM (requires wabt)</span>
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wat2wasm out/twophase/TwoPhaseCommit.wat</pre></div>
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</section>
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<footer>
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<p>Speckl is open source under the <a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/LICENSE">MIT License</a>.</p>
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<p>
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<a href="https://os.scoble.me/forgejo/sscoble/speckl">Forgejo</a> ·
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<a href="https://codeberg.org/sscoble/speckl">Codeberg mirror</a> ·
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<a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/docs/whitepaper-v2.md">Whitepaper v2</a> ·
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<a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/docs/speckl-by-example.md">Tutorial</a> ·
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<a href="https://os.scoble.me/forgejo/sscoble/speckl/src/branch/main/docs/distribution-strategy.md">Distribution Strategy</a>
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</p>
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<p>Built by Scott Scoble · Greybeard Holdings</p>
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</footer>
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</body>
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</html>
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