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 Lonsdale201/wp-agent-skills --skill acf-pro-complex-fieldsgit clone --depth 1 https://github.com/Lonsdale201/wp-agent-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/lonsdale201/wp-agent-skills/acf-pro-complex-fields)<a href="https://agentmods.dev/skills/lonsdale201/wp-agent-skills/acf-pro-complex-fields"><img src="https://agentmods.dev/badge/skills/lonsdale201/wp-agent-skills/acf-pro-complex-fields/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/lonsdale201/wp-agent-skills/acf-pro-complex-fields"><img src="https://agentmods.dev/badge/skills/lonsdale201/wp-agent-skills/acf-pro-complex-fields.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 | $0.00111 | $0.01737 |
| Opus 5.5 | $0.00044 | $0.00695 |
| Sonnet 5.5 | $0.00022 | $0.00347 |
| Haiku 4.5 | $0.00011 | $0.00174 |
Grade A, and why
acf-pro-complex-fields 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 28d 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 — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ACF PRO complex fields
This skill requires ACF PRO. Repeater, Flexible Content, Gallery, and Clone are not Free fields. The similarly nested Group field is available in Free and PRO and is mentioned only where its storage shape helps comparison.
Know the raw contract
| Field | Parent raw value | Child/raw storage |
|---|---|---|
| Repeater | row count, or empty string | field_name_0_sub_name, field_name_1_sub_name, plus reference rows |
| Flexible Content | ordered serialized array of layout names | field_name_0_sub_name rows plus layout metadata |
| Gallery | serialized attachment-ID array | no per-image ACF child rows |
| Clone | no independent content model of its own | selected fields save through their cloned definitions; optional name prefixing changes the resulting field names |
| Group (Free) | wrapper value plus flattened children | group_name_sub_name rows plus references |
Formatted reads rebuild nested arrays from these rows. Do not treat a Repeater or Flexible Content value as one serialized blob and do not rename a parent or subfield without migrating the flattened meta keys.
Programmatic writes
Use the parent field key and subfield keys for imports. This removes ambiguity and lets ACF update reference rows and delete rows that no longer exist.
update_field(
'field_acme_team_members',
array(
array(
'field_acme_member_name' => 'Ada',
'field_acme_member_role' => 'Engineer',
),
array(
'field_acme_member_name' => 'Lin',
'field_acme_member_role' => 'Designer',
),
),
$post_id
);
Flexible Content rows also require acf_fc_layout:
update_field(
'field_acme_sections',
array(
array(
'acf_fc_layout' => 'hero',
'field_acme_hero_title' => 'Build clearly',
'field_acme_hero_image' => $attachment_id,
),
array(
'acf_fc_layout' => 'quote',
'field_acme_quote_text' => 'Structure is part of the API.',
),
),
$post_id
);
What ships with it
1 file 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.
- 28d ago First seen · 202 lines · 111 tokens per session scan A 8e63ae1f1079
acf-pro-complex-fields is a skill published in the GitHub repository Lonsdale201/wp-agent-skills (24 stars, last pushed 4d ago), licensed MIT. It adds 111 tokens to every session and 1,737 once invoked, about $0.0004 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 2026-09-27.
Other skills, from other repositories
wp-plugin-performance
Performance guidelines for WordPress plugin development: database optimization, object caching, conditional asset loading, efficient hooks, HTTP requests, WP-Cron, AJAX/REST optimization, and common anti-patterns. Based on official WordPress Developer Resources and WP VIP documentation.
bigquery-udfs
Creates, deploys, and troubleshoots BigQuery User-Defined Functions (UDFs) and Remote Functions across SQL, JavaScript, Python, and Cloud Run endpoints. Use when writing custom scalar or aggregate functions in BigQuery, installing PyPI packages or Cloud Storage libraries in a Python or JavaScript UDF, or calling…
supabase
Use when doing ANY task involving Supabase. Triggers: Supabase products (Database, Auth, Edge Functions, Realtime, Storage, Vectors, Cron, Queues); client libraries and SSR integrations (supabase-js, @supabase/ssr) in Next.js, React, SvelteKit, Astro, Remix; auth issues (login, logout, sessions, JWT, cookies…
k2
Build and troubleshoot Cloudflare K2 or K2 Streams durable logs. Use for stream setup, producing from Workers or HTTP, configuring retention and inputs, and consuming through subscriptions.
kotlin-backend-jpa-entity-mapping
Model Kotlin persistence code correctly for Spring Data JPA and Hibernate. Covers entity design, identity and equality, uniqueness constraints, relationships, fetch plans, and common ORM (Object-Relational Mapping) traps specific to Kotlin. Use when creating or reviewing JPA (Java Persistence API) entities, diagnosing…
yida-data-management
A tool for querying, adding, and updating Yida form records, child tables, process records, and task-center data. It keeps ordinary forms and approval workflows on their separate data interfaces.