How do I install the Specmint Core HTML skill?

Run npx skillmds@latest add ngvoicu/specmint-core-html in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Specmint Core HTML skill do?

Persistent spec management for AI coding workflows, producing canonical SPEC.html files. Use this companion when the user explicitly mentions specs, forging, structured planning, resume/status/pause/switch, implementing a spec, or generating OpenAPI docs. Do NOT trigger on ordinary coding tasks that do not ask for spec management. It is listed under Web & Frontend on SkillMD.

Is Specmint Core HTML safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Specmint Core HTML?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Specmint Core HTML free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Specmint Core HTML?

ngvoicu (@ngvoicu) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Specmint Core HTML by ngvoicu — Agent Skill

Name: Specmint Core HTML
Author: ngvoicu

Spec Mint Core HTML — Kluris Companion

Turn ephemeral plans into structured, persistent specs built through deep research and iterative interviews. This HTML variant uses .specs/<id>/SPEC.html as the canonical spec document, not a markdown spec plus a separate view. The HTML file carries metadata, lifecycle state, diagrams, code previews, mockups, decision logs, and deviations in one human-openable artifact.

When this file is referenced from a Kluris-generated brain skill, read and follow it directly from ~/.kluris/companions/specmint-core-html/SKILL.md. Do not ask the user to install Specmint separately. Kluris vendors companions as single SKILL.md files, so every rule needed for companion mode is below.

Critical Invariants

Canonical files
- Registry: .specs/registry.md (markdown index)
- Per-spec document: .specs/<id>/SPEC.html
- Research notes: .specs/<id>/research-*.md
- Interview notes: .specs/<id>/interview-*.md
- Scratch, if needed: .specs/<id>/artifacts/
Authority rule: the JSON inside <script type="application/json" id="spec-meta"> is authoritative for identity and spec status. data-status attributes on phases, tasks, and acceptance criteria are authoritative for progress.
Active-spec rule: target exactly one active spec at a time.
HTML is the source of truth: do not create or update a parallel markdown spec for an HTML companion spec.
Progress tracking is sacred: after completing any task, immediately update SPEC.html (data-status, phase transitions, updated date) and .specs/registry.md (progress/date). Re-read both files before moving on.
Single-file companion mode: use inline HTML/CSS/JS patterns in the SPEC.html you write. Do not rely on unavailable sibling template or asset files from a separate plugin install.

Registry Format

Create .specs/registry.md if missing:

# Spec Registry

| ID | Title | Status | Priority | Progress | Updated |
|----|-------|--------|----------|----------|---------|
| user-auth-system | User Auth System | active | high | 0/12 | 2026-05-23 |

The registry is a denormalized index only. If it conflicts with SPEC.html, trust SPEC.html and repair the registry on the next write.

Session Start

If .specs/registry.md exists, check for an active row. If one exists, briefly mention it and invite resume; do not force spec work if the user asks for something unrelated.

Resuming

When the user says resume, status, or asks what was in progress:

Read .specs/registry.md and find the active spec.
Load .specs/<id>/SPEC.html.
Parse task progress from <li class="task" data-status="...">.
Current phase is the first <details class="phase" data-status="in-progress">.
Current task is the first pending task in that phase.
Present:

Resuming: <Title> (<id>)
Progress: <done>/<total> tasks
Phase: <phase title>
Current: <task text>

Begin work on the current task unless the user asked only for a status report.

Forging an HTML Spec

The forge workflow produces .specs/ files only. It does not implement application code.

Generate a lowercase hyphenated spec ID.
Collision-check .specs/<id>/SPEC.html and the registry.
Create .specs/<id>/ and .specs/registry.md if needed.
Research deeply:
- map the relevant codebase paths and dependency flow;
- inspect tests and existing conventions;
- search current docs/best practices when external APIs or libraries matter;
- identify risks, edge cases, and open questions.
Save research to .specs/<id>/research-01.md.
Interview the user with 3-6 targeted questions that research could not answer. Save answers to .specs/<id>/interview-01.md.
Repeat research/interview if important choices remain unclear.
Write .specs/<id>/SPEC.html from the self-contained HTML format below.
Update the registry row to active and 0/N progress.
Validate the HTML/JSON structure, present the spec, and wait for explicit approval before implementation.

SPEC.html Format

Use this structure. Keep region comments; they make future edits reliable.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Spec: User Auth System</title>
  <script type="application/json" id="spec-meta">{"id":"user-auth-system","title":"User Auth System","status":"active","created":"2026-05-23","updated":"2026-05-23","priority":"high","tags":["auth"],"mockup-fidelity":"hi-fi"}</script>
  <style>
    body{font-family:Inter,system-ui,sans-serif;margin:0;background:#0f172a;color:#e5e7eb;line-height:1.55}
    main{max-width:1100px;margin:0 auto;padding:32px}.card{background:#111827;border:1px solid #334155;border-radius:16px;padding:20px;margin:16px 0}
    .pill{display:inline-block;border-radius:999px;padding:2px 10px;background:#334155}.pill--completed{background:#065f46}.pill--in-progress{background:#1d4ed8}.pill--pending{background:#475569}.pill--blocked{background:#7f1d1d}
    .task,.ac-item{margin:10px 0;padding:10px;border-left:4px solid #475569;background:#0b1220}.task[data-status="completed"],.ac-item[data-status="completed"]{border-color:#10b981}.task[data-status="in-progress"],.phase[data-status="in-progress"]{border-color:#60a5fa}.task[data-status="blocked"],.phase[data-status="blocked"]{border-color:#f87171}
    pre{overflow:auto;background:#020617;border-radius:12px;padding:16px}.mockup{background:#f8fafc;color:#0f172a;border-radius:16px;padding:20px}.table{width:100%;border-collapse:collapse}.table td,.table th{border:1px solid #334155;padding:8px;text-align:left}
  </style>
</head>
<body>
<main>
  <header class="card">
    <h1>User Auth System</h1>
    <p><span class="pill pill--in-progress">Active</span> <span class="pill">high</span></p>
    <dl><dt>Created</dt><dd>2026-05-23</dd><dt>Updated</dt><dd>2026-05-23</dd></dl>
  </header>

  <!-- region:OVERVIEW -->
  <section class="card"><h2>Overview</h2><p>What is being built and why.</p></section>
  <!-- endregion:OVERVIEW -->

  <!-- region:ACCEPTANCE -->
  <section class="card"><h2>Acceptance Criteria</h2><ul>
    <li class="ac-item" data-status="pending">User can sign in with GitHub.</li>
  </ul></section>
  <!-- endregion:ACCEPTANCE -->

  <!-- region:ARCHITECTURE -->
  <section class="card"><h2>Architecture</h2><pre class="mermaid">flowchart LR
    A["User"] --> B["Frontend"]
    B --> C["Backend API"]
  </pre></section>
  <!-- endregion:ARCHITECTURE -->

  <!-- region:LIBRARIES -->
  <section class="card"><h2>Library Choices</h2><table class="table"><thead><tr><th>Need</th><th>Choice</th><th>Why</th></tr></thead><tbody><tr><td>Auth</td><td>Existing stack</td><td>Matches project conventions.</td></tr></tbody></table></section>
  <!-- endregion:LIBRARIES -->

  <!-- region:PHASES -->
  <section class="card"><h2>Phases & Tasks</h2>
    <details class="phase" open data-status="in-progress"><summary><strong>Phase 1: Foundations</strong> <span class="pill pill--in-progress">In progress</span></summary><ul class="task-list">
      <li class="task" data-status="pending"><span class="task-code">UAS-01</span> Add auth configuration in <code>src/auth/config.ts</code>.</li>
    </ul></details>
  </section>
  <!-- endregion:PHASES -->

  <!-- region:CODE_PREVIEWS -->
  <section class="card"><h2>Code Previews</h2><figure class="code-diff"><figcaption>Public contract</figcaption><pre><code>+ export async function signInWithGithub(code: string): Promise&lt;UserSession&gt;</code></pre></figure></section>
  <!-- endregion:CODE_PREVIEWS -->

  <!-- region:MOCKUPS -->
  <section class="card"><h2>UI Mockups</h2><figure class="mockup"><h3>Sign in</h3><button>Continue with GitHub</button></figure></section>
  <!-- endregion:MOCKUPS -->

  <!-- region:DECISIONS -->
  <section class="card"><h2>Decision Log</h2><table class="table"><thead><tr><th>Date</th><th>Decision</th><th>Rationale</th></tr></thead><tbody></tbody></table></section>
  <!-- endregion:DECISIONS -->

  <!-- region:DEVIATIONS -->
  <section class="card"><h2>Deviations</h2><table class="table"><thead><tr><th>Task</th><th>Spec Said</th><th>Actually Did</th><th>Why</th></tr></thead><tbody></tbody></table></section>
  <!-- endregion:DEVIATIONS -->
</main>
</body>
</html>

Authoring Rules

Metadata JSON must be valid and single-source-of-truth for id, title, status, created, updated, priority, tags, and mockup-fidelity.
Valid lifecycle values: pending, in-progress, completed, blocked.
Task codes use a 2-4 uppercase prefix plus incrementing number, e.g. AUTH-01.
Every non-trivial spec needs at least one Mermaid diagram and at least one code preview showing a meaningful contract, schema, API, or test pattern.
Quote Mermaid labels whenever they contain punctuation, slashes, parentheses, commas, colons, arrows, or spaces beyond simple words.
UI work should include a real-looking mockup unless the user says mockups are unnecessary.
Never leave TBD, TODO, placeholder, figure out, or unresolved choices in the final spec. Ask the user instead.

Implementing a Spec

When the user asks to implement:

Read the active registry row and load SPEC.html.
Select scope: current task, a named phase, or all remaining phases.
For each task in order:
- implement the code;
- run the relevant tests or checks;
- update the task data-status to completed;
- if all tasks in a phase are complete, mark the phase completed and promote the next phase to in-progress;
- update the updated date in spec-meta and the visible header;
- recompute progress directly from task data-status counts;
- update .specs/registry.md;
- re-read both files to verify progress is in sync.
Log durable decisions in the Decision Log.
Log implementation drift in Deviations.
Before claiming phase/spec completion, show the actual command output from the relevant test suite.

Pausing and Completion

Pause by setting spec status to paused in spec-meta, changing the visible status pill, updating the registry, and recording any durable decision/context.

Complete only when all tasks and acceptance criteria are complete, all phases are complete, the full relevant test suite has been run, and the registry row matches the derived task progress from SPEC.html.

Specmint Core HTML

File contents

Spec Mint Core HTML — Kluris Companion

Critical Invariants

Registry Format

Session Start

Resuming

Forging an HTML Spec

SPEC.html Format

Authoring Rules

Implementing a Spec

Pausing and Completion

Frequently asked questions

Specmint Core HTML

File contents

Spec Mint Core HTML — Kluris Companion

Critical Invariants

Registry Format

Session Start

Resuming

Forging an HTML Spec

SPEC.html Format

Authoring Rules

Implementing a Spec

Pausing and Completion

Related skills

Frequently asked questions

How do I install the Specmint Core HTML skill?

What does the Specmint Core HTML skill do?

Is Specmint Core HTML safe to use?

Which AI agents work with Specmint Core HTML?

Is Specmint Core HTML free to use?

Who published Specmint Core HTML?