Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add unbounce/agent-plugins --skill mcp-modernizegit clone --depth 1 https://github.com/unbounce/agent-pluginsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/unbounce/agent-plugins/mcp-modernize)<a href="https://agentmods.dev/skills/unbounce/agent-plugins/mcp-modernize"><img src="https://agentmods.dev/badge/skills/unbounce/agent-plugins/mcp-modernize/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/unbounce/agent-plugins/mcp-modernize"><img src="https://agentmods.dev/badge/skills/unbounce/agent-plugins/mcp-modernize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00140 | $0.03025 |
| Opus 5.5 | $0.00056 | $0.01210 |
| Sonnet 5.5 | $0.00028 | $0.00605 |
| Haiku 4.5 | $0.00014 | $0.00302 |
Grade A, and why
mcp-modernize scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 22d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 203 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Modernizing an Unbounce page (responsive rewrite)
Turn a page built in the Unbounce builder into clean, responsive flexbox/grid HTML — pixel-faithful to the original on desktop, reflowing sensibly on mobile. This is a REPLICATION task with zero creative latitude: same copy, same images, same fonts, same colors, same element counts. The only thing that changes is the layout model (absolute positioning → flex/grid).
The pipeline is two deliberate stages:
- Import —
create_variant_from_existing_variantclones the builder-built source into an MCP-managed variant that renders identically (deterministic; every string, image URL, font, and form field lands in the copy verbatim). - Rewrite (this skill) — read that copy, restructure its layout to
responsive flex/grid, and write it back in place with
update_variant_from_html.
Extraction fidelity is stage 1's job and it is deterministic — never work from the original builder page directly, and never re-derive content from screenshots or memory. Your job is only the layout transformation.
Language with the user
Never say "modernize", "modernization", "replica", or platform-internal terms to the user. Their page is fine; say "make your page responsive" and "an editable copy of your page". The result cannot be edited in the Unbounce builder — all future edits go through MCP tools; say so at handover, and never suggest the builder.
Workflow
Step 1 — Resolve the target. Identify the page (list_client_pages) and
variant (list_page_variants). If the target variant is builder-built (not
MCP-managed), tell the user in one line what is about to happen — e.g. "I'll
create an editable copy of your page, then make that copy responsive — your
original stays untouched" — then run create_variant_from_existing_variant
(no target_page ⇒ new page). No further permission ceremony is needed; the
copy is additive and safe. Relay any conversion warnings honestly. A
fixed-width "autoscale" source converts fine — the conversion report notes that
runtime viewport scaling isn't preserved; that is expected and harmless here,
because you rewrite the page responsive from scratch (Step 4), discarding the
scaling entirely. If the target is already an MCP-managed imported copy, skip
straight to Step 2.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 22d ago Changed · +22 tokens per session f4234e43b5a7
- 29d ago Changed · +60 lines 7ce0ca2c47b2
- 2mo ago First seen · 143 lines · 118 tokens per session scan A 158add4b4cd3
mcp-modernize is a skill published in the GitHub repository unbounce/agent-plugins (2 stars, last pushed 5d ago), licensed MIT. It adds 140 tokens to every session and 3,025 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
mcp-modernize compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| mcp-modernizeunbounce/agent-plugins | Skill | 2 | 5d ago | MIT | A | 140 | Claude Code |
| 12-brief-landing-pageminhnv0807/ai-business-skills | Skill | 643 | 3d ago | MIT | A | 145 | Claude Code |
| 12-landing-page-brief-globalminhnv0807/ai-business-skills | Skill | 643 | 3d ago | MIT | A | 0 | Claude Code |
| 49-html-email-template-globalminhnv0807/ai-business-skills | Skill | 643 | 3d ago | MIT | A | 167 | Claude Code |
| 49-html-email-templateminhnv0807/ai-business-skills | Skill | 643 | 3d ago | MIT | A | 167 | Claude Code |
| image-post-processorXuanRanL/loamwright-SEO-Skill | Skill | 52 | 2mo ago | Apache-2.0 | A | 51 | Claude Code |
| pretextNousResearch/hermes-agent | Skill | 262k | today | MIT | A | 13 | Claude Code, Codex |