imgproxy-js-core: Skill for Claude Code

.claude/skills/imgproxy-docs-sync/SKILL.md

imgproxy-docs-sync is a skill for Claude Code from imgproxy/imgproxy-js-core. It costs 90 tokens per session (2,585 once invoked), scanned A, original, MIT.

A workflow for updating this package when the upstream imgproxy documentation changes. imgproxy is a tool that processes images through URLs and configuration.

In plain words
What is it for?
Use it with a matching GitHub issue to inspect the linked documentation difference, prepare a change plan for approval, implement the update, and open a pull request.
Why use it?
It turns a documentation update into a reviewed code change, so maintainers do not have to manually compare repositories and guess what needs updating.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: names the AskUserQuestion tool.

This is imgproxy/imgproxy-js-core's own configuration. It tells Claude Code how to work on imgproxy-js-core itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything imgproxy-js-core configures →

Reuse

Borrowing it

Nothing to install: this file belongs to imgproxy/imgproxy-js-core. 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/imgproxy/imgproxy-js-core/main/.claude/skills/imgproxy-docs-sync/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/imgproxy/imgproxy-js-core

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.

agentmods badge for imgproxy-docs-sync

README.md
[![agentmods](https://agentmods.dev/badge/skills/imgproxy/imgproxy-js-core/imgproxy-docs-sync/github.svg)](https://agentmods.dev/skills/imgproxy/imgproxy-js-core/imgproxy-docs-sync)
Your own site
<a href="https://agentmods.dev/skills/imgproxy/imgproxy-js-core/imgproxy-docs-sync"><img src="https://agentmods.dev/badge/skills/imgproxy/imgproxy-js-core/imgproxy-docs-sync/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.

agentmods 80×15 button for imgproxy-docs-sync

Your own site · 80×15
<a href="https://agentmods.dev/skills/imgproxy/imgproxy-js-core/imgproxy-docs-sync"><img src="https://agentmods.dev/badge/skills/imgproxy/imgproxy-js-core/imgproxy-docs-sync.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,585 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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: 3 findings, 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 77
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
  • medium Prompt Injection · line 77
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
  • medium Excessive Agency · line 81
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00090 $0.02585
Opus 5.5 $0.00036 $0.01034
Sonnet 5.5 $0.00018 $0.00517
Haiku 4.5 $0.00009 $0.00259

Measured 2mo ago against content hash 12336f852299, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

imgproxy-docs-sync scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

`curl -sL https://github.com/imgproxy/imgproxy-docs/compare/<base>...<head>.diff`
.claude/skills/imgproxy-docs-sync/SKILL.md · 225 lines

How it starts

The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.

imgproxy docs sync

Turn an upstream docs-update issue into a reviewed code change and a PR.

The imgproxy-docs repo fires a repository_dispatch at this repo whenever the Usage section of the docs changes. .github/workflows/imgproxy-usage-updated.yml opens an issue from .github/templates/ISSUE.md, always titled "Usage docs of imgproxy have been updated" and always shaped like this:

@DarthSim has just updated the [Usage](https://docs.imgproxy.net/category/usage) part of the documentation.
Please, check [the difference](https://github.com/imgproxy/imgproxy-docs/compare/451581c87fd8...6c7c0312f7f0) and make the necessary changes.

The whole job is: read that diff, decide what it means for this package, get sign-off, ship it.

Input

The skill argument is an issue number (83), an issue URL, or nothing.

  • Nothing given — list the candidates and ask which one: gh issue list --state open --search "Usage docs of imgproxy have been updated" --json number,title,createdAt If several are open, note that they are sequential: issue N's base sha is usually issue N-1's head sha. Offer to process the oldest first, or to collapse the whole run into one range (oldest base … newest head) and one PR. Don't decide this silently — ask.
  • Issue given — go straight to step 1.

Step 1 — Read the issue and extract the compare range

gh issue view <N> --json number,title,body,state,url

Pull the two shas out of the the difference link: https://github.com/imgproxy/imgproxy-docs/compare/<base>...<head>.

Bail out early and tell the user if: the issue is already closed, its body has no compare link (a hand-written issue — this skill doesn't apply, handle it normally), or a PR already references it (gh pr list --state all --search "<N>").

Step 2 — Get the upstream diff

gh api repos/imgproxy/imgproxy-docs/compare/<base>...<head> \
  --jq '.files[] | {filename, status, additions, deletions}'

Then read the patches for **docs/usage/** only**:

Read the full file on GitHub · 225 lines

Files

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.

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.

  1. 2mo ago First seen · 225 lines · 90 tokens per session scan A 12336f852299

Subscribe to this mod's changes

imgproxy-docs-sync is a skill published in the GitHub repository imgproxy/imgproxy-js-core (12 stars, last pushed 2mo ago), licensed MIT. It adds 90 tokens to every session and 2,585 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

imgproxy-docs-sync compared with skills from other repositories

imgproxy-docs-sync next to 6 skills from other repositories
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