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 ihatesea69/HieuNghi-AI-Skills --skill wp-block-developmentgit clone --depth 1 https://github.com/ihatesea69/HieuNghi-AI-SkillsWrote 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/ihatesea69/hieunghi-ai-skills/wp-block-development)<a href="https://agentmods.dev/skills/ihatesea69/hieunghi-ai-skills/wp-block-development"><img src="https://agentmods.dev/badge/skills/ihatesea69/hieunghi-ai-skills/wp-block-development/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/ihatesea69/hieunghi-ai-skills/wp-block-development"><img src="https://agentmods.dev/badge/skills/ihatesea69/hieunghi-ai-skills/wp-block-development.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 | $0.00067 | $0.01451 |
| Opus 5.5 | $0.00027 | $0.00580 |
| Sonnet 5.5 | $0.00013 | $0.00290 |
| Haiku 4.5 | $0.00007 | $0.00145 |
Grade A, and why
wp-block-development 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 1mo 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.
This is a copy
100% identical to wp-block-development — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.
WP Block Development
When to use
Use this skill for block work such as:
- creating a new block, or updating an existing one
- changing
block.json(scripts/styles/supports/attributes/render/viewScriptModule) - fixing “block invalid / not saving / attributes not persisting”
- adding dynamic rendering (
render.php/render_callback) - block deprecations and migrations (
deprecatedversions) - build tooling for blocks (
@wordpress/scripts,@wordpress/create-block,wp-env)
Inputs required
- Repo root and target (plugin vs theme vs full site).
- The block name/namespace and where it lives (path to
block.jsonif known). - Target WordPress version range (especially if using modules /
viewScriptModule).
Procedure
0) Triage and locate blocks
- Run triage:
node skills/wp-project-triage/scripts/detect_wp_project.mjs
- List blocks (deterministic scan):
node skills/wp-block-development/scripts/list_blocks.mjs
- Identify the block root (directory containing
block.json) you’re changing.
If this repo is a full site (wp-content/ present), be explicit about which plugin/theme contains the block.
1) Create a new block (if needed)
If you are creating a new block, prefer scaffolding rather than hand-rolling structure:
- Use
@wordpress/create-blockto scaffold a modern block/plugin setup. - If you need Interactivity API from day 1, use the interactive template.
Read:
references/creating-new-blocks.md
After scaffolding:
- Re-run the block list script and confirm the new block root.
- Continue with the remaining steps (model choice, metadata, registration, serialization).
2) Ensure apiVersion 3 (WordPress 6.9+)
WordPress 6.9 enforces apiVersion: 3 in the block.json schema. Blocks with apiVersion 2 or lower trigger console warnings when SCRIPT_DEBUG is enabled.
Why this matters:
- WordPress 7.0 will run the post editor in an iframe regardless of block apiVersion.
- apiVersion 3 ensures your block works correctly inside the iframed editor (style isolation, viewport units, media queries).
What ships with it
11 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.
- references/attributes-and-serialization.md 759 B
- references/block-json.md 2.3 KB
- references/creating-new-blocks.md 1.6 KB
- references/debugging.md 1.3 KB
- references/deprecations.md 665 B
- references/dynamic-rendering.md 685 B
- references/inner-blocks.md 1.2 KB
- references/registration.md 932 B
- references/supports-and-wrappers.md 512 B
- references/tooling-and-testing.md 928 B
- scripts/list_blocks.mjs 2.8 KB runs code
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.
- 1mo ago First seen · 175 lines · 67 tokens per session scan A 0bb162e63148
wp-block-development is a skill published in the GitHub repository ihatesea69/HieuNghi-AI-Skills (3 stars, last pushed 8mo ago), licensed MIT. It adds 67 tokens to every session and 1,451 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to wp-block-development, differing in 0 lines, and is treated as a copy.
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