A guide for building Datapages web applications in Go, using its command-line tool and source packages. Datapages generates the server, while Templ creates HTML and Datastar adds browser updates.

Building or modifying a Datapages app, especially when the project has a datapages.yaml file or imports the datapages package.

It gives an AI coding agent the project rules and workflow needed to change a Datapages app correctly. It also clarifies which separate tools handle templates and browser behavior.

How romshark/datapages configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to romshark/datapages. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/romshark/datapages/main/.claude/skills/datapages/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/romshark/datapages

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/romshark/datapages/datapages/github.svg)](https://agentmods.dev/skills/romshark/datapages/datapages)

Your own site

<a href="https://agentmods.dev/skills/romshark/datapages/datapages"><img src="https://agentmods.dev/badge/skills/romshark/datapages/datapages/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/romshark/datapages/datapages"><img src="https://agentmods.dev/badge/skills/romshark/datapages/datapages.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 68 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Prompt Injection · line 931
Subtle instructions detected that may alter agent decision-making or introduce hidden biases.

Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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	$0.00022	$0.00068
Opus 5.5	$0.00009	$0.00027
Sonnet 5.5	$0.00004	$0.00014
Haiku 4.5	$0.00002	$0.00007

Measured 1mo ago against content hash 0b13d13af93e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

datapages 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.

.claude/skills/datapages/SKILL.md · 8 lines

What it actually says

Read internal/generator/agentdocs/data/skills/datapages/SKILL.md and its linked task skill. Those files are the source shipped to users by datapages init.

Changes

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 Changed · -1,189 lines · -31 tokens per session 0b13d13af93e
1mo ago Changed · +19 lines a0b3a425743a
1mo ago Changed · +132 lines 89f50eb0ee56
1mo ago Changed · +24 lines d2951416d85a
1mo ago Changed · +6 lines ff106c49e82a
1mo ago Changed · +2 lines ba8250324731
2mo ago Changed · +1 lines 070a5d2ceef4
2mo ago First seen · 1,013 lines · 53 tokens per session scan A b3247df8029a

Subscribe to this mod's changes

datapages is a skill published in the GitHub repository romshark/datapages (119 stars, last pushed 2d ago), licensed MIT. It adds 22 tokens to every session and 68 once invoked, about $0.0001 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 2026-08-30.

Frontend Go datastar framework nats templ

datapages next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
datapagesromshark/datapages	Skill	119	2d ago	MIT	A	22	Claude Code
go-idiomsirahardianto/awesome-agv	Skill	158	23d ago	MIT	A	54	Claude Code, Codex
structpagesjackielii/structpages	Skill	24	yesterday	BSD-3-Clause	A	154	Claude Code
pinchtab-mcppinchtab/pinchtab	Skill	11k	10d ago	MIT	A	52	Claude Code, Codex
pinchtab-stealth-scorepinchtab/pinchtab	Skill	11k	10d ago	MIT	A	168	Claude Code, Codex
investigatevercel/eve	Skill	5.8k	today	Apache-2.0	A	25	Claude Code, Codex
reviewvercel/eve	Skill	5.8k	today	Apache-2.0	A	31	Claude Code, Codex

datapages: Skill for Claude Code