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 Impertio-Studio/QGIS-Claude-Skill-Package --skill qgis-impl-web-servicesgit clone --depth 1 https://github.com/Impertio-Studio/QGIS-Claude-Skill-PackageWrote 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/impertio-studio/qgis-claude-skill-package/qgis-impl-web-services)<a href="https://agentmods.dev/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-web-services"><img src="https://agentmods.dev/badge/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-web-services/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/impertio-studio/qgis-claude-skill-package/qgis-impl-web-services"><img src="https://agentmods.dev/badge/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-web-services.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 | $0.00124 | $0.03514 |
| Opus 5 | $0.00062 | $0.01757 |
| Sonnet 5 | $0.00025 | $0.00703 |
| Haiku 4.5 | $0.00012 | $0.00351 |
Grade A, and why
qgis-impl-web-services 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 11d 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 — 463 lines — stays where its author put it; the contents beside it link to each section on GitHub.
qgis-impl-web-services
Quick Reference
OGC Client Layer Types
| Service | Provider | Layer Class | URI Style |
|---|---|---|---|
| WMS | "wms" |
QgsRasterLayer |
Key-value params |
| WMTS | "wms" |
QgsRasterLayer |
Key-value params + tilematrixset |
| WFS | "WFS" |
QgsVectorLayer |
Full URL with query params |
| WCS | "wcs" |
QgsRasterLayer |
Key-value params |
| XYZ Tiles | "wms" |
QgsRasterLayer |
type=xyz&url=... |
Exact URI Format Strings
WMS:
crs=EPSG:4326&format=image/png&layers=layername&styles=&url=https://server/wms
WMTS:
crs=EPSG:3857&format=image/png&layers=layername&styles=default&tilematrixset=GoogleMapsCompatible&url=https://server/wmts
WFS:
https://server/wfs?service=WFS&version=2.0.0&request=GetFeature&typename=namespace:layername
WCS:
url=https://server/wcs&identifier=coveragename&crs=EPSG:4326
XYZ Tiles:
type=xyz&url=https://tile.server.com/%7Bz%7D/%7Bx%7D/%7By%7D.png&zmax=19&zmin=0&crs=EPSG3857
Server Filter Registration
| Filter Type | Base Class | Registration Method |
|---|---|---|
| I/O Filter | QgsServerFilter |
serverIface.registerFilter(filter, priority) |
| Access Control | QgsAccessControlFilter |
serverIface.registerAccessControl(filter, priority) |
| Cache | QgsServerCacheFilter |
serverIface.registerServerCache(filter, priority) |
Priority: lower number = invoked first.
Critical Warnings
NEVER assume a WMS layer supports all CRS -- ALWAYS check the GetCapabilities response before requesting a specific CRS.
ALWAYS verify layer validity immediately after construction with layer.isValid(). An invalid WMS/WFS layer silently fails with no exception.
ALWAYS URL-encode curly braces in XYZ tile URLs when building the URI parameter string: {z} becomes %7Bz%7D, {x} becomes %7Bx%7D, {y} becomes %7By%7D.
NEVER hardcode credentials in URI strings. ALWAYS use QgsAuthManager with stored authentication configurations (authcfg parameter).
What ships with it
3 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.
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.
- 11d ago First seen · 463 lines · 124 tokens per session scan A b070892f08f7
qgis-impl-web-services is a skill published in the GitHub repository Impertio-Studio/QGIS-Claude-Skill-Package (33 stars, last pushed 2mo ago), licensed MIT. It adds 124 tokens to every session and 3,514 once invoked, about $0.0006 per session on Opus 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.
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