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 dan-rozhkov/pen-editor-plugin --skill sideform-dev-modegit clone --depth 1 https://github.com/dan-rozhkov/pen-editor-pluginWrote 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/dan-rozhkov/pen-editor-plugin/sideform-dev-mode)<a href="https://agentmods.dev/skills/dan-rozhkov/pen-editor-plugin/sideform-dev-mode"><img src="https://agentmods.dev/badge/skills/dan-rozhkov/pen-editor-plugin/sideform-dev-mode/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/dan-rozhkov/pen-editor-plugin/sideform-dev-mode"><img src="https://agentmods.dev/badge/skills/dan-rozhkov/pen-editor-plugin/sideform-dev-mode.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 | $0.00068 | $0.00945 |
| Opus 5.5 | $0.00027 | $0.00378 |
| Sonnet 5.5 | $0.00014 | $0.00189 |
| Haiku 4.5 | $0.00007 | $0.00094 |
Grade A, and why
sideform-dev-mode 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 15d 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 — 33 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sideform dev mode
You are translating a live Sideform design into code. This is a read-only task against the design: gather everything you need, then write code in the target codebase. Do not call batch_design or set_variables — reading a design in order to implement it is not a license to edit it. If the user actually wants the design itself changed, that's the sideform-design skill, not this one.
All Sideform tools below run against the user's editor. In clients that support MCP Apps, call open_canvas first; otherwise the user needs https://app.sideform.pro/app open and signed in in a browser tab. If a call errors because no editor is open, see sideform-connect (30s timeout).
Workflow
get_editor_state— active file, selection, top-level nodes, available components. Establishes what you're implementing and its scope.batch_get— pull the actual subtree you're implementing (bynodeIdsor a searchpatternsmatch), with enoughreadDepth/searchDepthto see every descendant that matters. This is the node model: types,layout/fills/strokes/effects/cornerRadius, text content, etc.snapshot_layout— the fidelity-critical step. This returns computed rectangles (positions/sizes) after Sideform's layout engine has run — not the raw authored properties. Use these numbers, not eyeballed guesses, for spacing, sizing, and any absolutely-positioned children.problemsOnly: truesurfaces clipping/overflow you should account for in the implementation.get_variables— read the design's tokens and map them onto the codebase's own design tokens (CSS variables, Tailwind theme values, etc.) rather than hardcoding hex values pulled off a node. If a fill/stroke references$--some-token, your code should reference the codebase's equivalent token, not a literal color.get_screenshot— visual reference while translating, and again afterward to compare your built component against the design.
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.
- 15d ago First seen · 33 lines · 68 tokens per session scan A bf3185956386
sideform-dev-mode is a skill published in the GitHub repository dan-rozhkov/pen-editor-plugin (0 stars, last pushed 2d ago), licensed MIT. It adds 68 tokens to every session and 945 once invoked, about $0.0003 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 2026-10-06.
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