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-georeferencinggit 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-georeferencing)<a href="https://agentmods.dev/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-georeferencing"><img src="https://agentmods.dev/badge/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-georeferencing/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-georeferencing"><img src="https://agentmods.dev/badge/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-georeferencing.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 | $0.00100 | $0.03741 |
| Opus 5 | $0.00050 | $0.01870 |
| Sonnet 5 | $0.00020 | $0.00748 |
| Haiku 4.5 | $0.00010 | $0.00374 |
Grade A, and why
qgis-impl-georeferencing 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 12d 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 — 389 lines — stays where its author put it; the contents beside it link to each section on GitHub.
qgis-impl-georeferencing
Quick Reference
Core Classes
| Class | Module | Since | Purpose |
|---|---|---|---|
QgsGcpPoint |
qgis.analysis |
3.26 | Ground control point with source/destination coords |
QgsGcpTransformerInterface |
qgis.analysis |
3.20 | Creates and applies coordinate transformations |
QgsGcpGeometryTransformer |
qgis.analysis |
3.18 | Transforms QgsGeometry objects using GCPs |
QgsVectorWarper |
qgis.analysis |
3.26 | Warps vector features via transformFeatures() |
Transformation Types
| Method | Enum | Min GCPs | Use Case |
|---|---|---|---|
| Linear | Linear |
2 | Simple offset and scale, no rotation needed |
| Helmert | Helmert |
2 | Rotation + scale + translation, rigid body |
| Polynomial 1 | PolynomialOrder1 |
3 | General affine transformation |
| Polynomial 2 | PolynomialOrder2 |
6 | Moderate local distortion correction |
| Polynomial 3 | PolynomialOrder3 |
10 | Heavy local distortion correction |
| Projective | Projective |
4 | Perspective correction (scanned oblique images) |
| Thin Plate Spline | ThinPlateSpline |
1 | Exact interpolation through all GCPs |
Enum Access
from qgis.analysis import QgsGcpTransformerInterface
TM = QgsGcpTransformerInterface.TransformMethod
TM.Linear # 0
TM.Helmert # 1
TM.PolynomialOrder1 # 2
TM.PolynomialOrder2 # 3
TM.PolynomialOrder3 # 4
TM.ThinPlateSpline # 5
TM.Projective # 6
Critical Warnings
NEVER call warpLayer() on QgsVectorWarper -- this method does NOT exist. ALWAYS use transformFeatures() with a feature iterator and feature sink.
NEVER use QgsImageWarper from Python -- it has NO Python bindings. ALWAYS use GDAL Python bindings (osgeo.gdal) for raster georeferencing.
NEVER use fewer GCPs than the minimum required for the chosen transformation type. The createFromParameters() factory returns None when GCP count is insufficient.
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.
- 12d ago First seen · 389 lines · 100 tokens per session scan A 34ad5b149449
qgis-impl-georeferencing is a skill published in the GitHub repository Impertio-Studio/QGIS-Claude-Skill-Package (33 stars, last pushed 2mo ago), licensed MIT. It adds 100 tokens to every session and 3,741 once invoked, about $0.0005 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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