Item detail
github.com

plannotator/effective-html

plannotator/effective-html is a 3 installable html skill primiti that RepoRadar is tracking in its AI Agent Skills / Visual Artefact Generation section, currently rated Silver tier with a 'try now' verdict. Its strongest signal is workflow potential, scored 9.4 out of 10.

Score7.9
Popularity1.0
Risklow
TierSilver
Score breakdown
Usefulness8.0
Novelty8.0
Momentum8.0
Maturity5.8
Open-source/build8.4
Evidence7.2
Workflow potential9.4
Setup ease8.8

Popularity is tracked separately. Support, ads, sponsorships, and tips never affect these signals.

Why it matters

Useful for AI-coding power users, agent developers, automation builders, knowledge workers, technical writers, AI-curious readers, and any developer building a visual-artefact-generation workflow with an AI agent -- and who can pair effective-html with an Anthropic / OpenAI / DeepSeek / Xiaomi Mimo / Claude / GPT API key for the model surface, an SKILL.md-compatible agent (Claude Code, Codex, Curs

Who should use it

AI-coding power users, agent developers, automation builders, knowledge workers, technical writers, AI-curious readers, and any developer building a visual-artefact-generation workflow with an AI agent -- and who can pair effective-html with an Anthropic / OpenAI / DeepSeek / Xiaomi Mimo / Claude / GPT API key for the model surface, an SKILL.md-compatible agent (Claude Code, Codex, Cursor, OpenCode, etc.) for the install surface, `npx skills add plannotator/effective-html` (or `--list` for individual skills) for the skills-install surface, and the `backnotprop/plannotator` 6,811* companion for the visual annotation surfaceEngineering teams that want a narrow-scope visual-artefact-generation skills library -- the 3 installable skills (html + html-diagram + html-plan) + 20+ reference HTML templates in the `html-effectiveness` style + dark-mode primitive + Plannotator 6,811* companion form a complete visual-artefact-generation domain surface; the durable differentiator is the combination of 3 skills + 20+ reference templates + Plannotator companionEngineering teams that want dark-mode-aware visual artefacts -- the dark-mode primitive is consistent across all skills: hand-rolled CSS variables on `:root` / `html.dark`, a small theme toggle button, `localStorage` persistence, and an apply-before-paint script in `<head>` (default to `prefers-color-scheme`); the right primitive for dark-mode-aware visual artefactsEngineering teams that want a `disable-model-invocation: true` user-invoked skill -- the SKILL.md frontmatter on each skill makes the skills user-invoked (the agent does not auto-trigger them) which is the right default for a visual-artefact generator; the consumer can use the skill only when explicitly asked for a visual artefactEngineering teams that want a Plannotator companion integration -- the companion `backnotprop/plannotator` is a 6,811* Apache-2.0 visual annotator + reviewer for coding agent plans + code diffs; the rendering + annotation surface for the HTML plans this skill produces; the README is explicit about the cross-promotion: 'Render and annotate your HTML with Plannotator (optional)'

Who should skip it

Skip plannotator/effective-html if the source link, documentation, or setup requirements do not align with your current workflow or stack.

About this signal

plannotator/effective-html is tracked by RepoRadar as a 3 installable html skill primiti in the AI Agent Skills / Visual Artefact Generation section. It was first seen on 2026-07-06 and last updated on 2026-07-06. The current verdict is 'try now' with a Silver tier and easy setup difficulty. plannotator/effective-html leads on workflow potential (9.4) and setup ease (8.8); its lowest signal is maturity (5.8), so factor that in before investing setup time. This page summarizes the evidence RepoRadar has captured from captured source metadata. The score, tier, risk label, and verdict on this page are never influenced by sponsorship, ads, or tips — they reflect only the usefulness, popularity, novelty, momentum, maturity, and evidence signals described in the RepoRadar methodology.

How this item is evaluated

RepoRadar assigned plannotator/effective-html a composite score of 7.9 out of 10, placing it in the Silver tier. This score combines weighted sub-signals: usefulness (35%), novelty (18%), momentum (14%), maturity (10%), open-source/build quality (7%), evidence quality (6%), workflow potential (6%), and setup ease (4%). Popularity is tracked separately at 1.0 and never affects the composite score or tier. The risk label of 'low' reflects inherent user-impacting hazards, not generic novelty. Items with no risk flag may still require normal code review before production use.

Putting this into practice? Read How to vet an AI agent or MCP server before you wire it in for the checklist behind this score.

Risk explanation

The 1; 286* / 153 KB repo is at active maintenance but the maintainer is a small team (plannotator / backnotprop) -- treat the first evaluation cycle as a smoke test (install via `npx skills add plannotator/effective-html` + ask the agent to use the `html-plan` skill to render a plan as an HTML page + confirm the dark-mode primitive is applied + confirm the 20+ reference templates are available) before relying on the 3 skills in production; the dark-mode primitive relies on `prefers-color-scheme` and `localStorage` -- the consumer SHOULD test the dark-mode behavior in the consumer's environment; the `disable-model-invocation: true` frontmatter means the consumer MUST explicitly invoke the skill in their agent prompt (the agent will not auto-trigger the skill) -- the consumer SHOULD document the invocation pattern for their team.

Evidence links
Closest alternatives / related signals
open-sourcemitplannotator-effective-htmleffective-htmlhtml-skillhtml-diagram-skillhtml-plan-skill3-skills