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-postgisgit 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-postgis)<a href="https://agentmods.dev/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-postgis"><img src="https://agentmods.dev/badge/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-postgis/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-postgis"><img src="https://agentmods.dev/badge/skills/impertio-studio/qgis-claude-skill-package/qgis-impl-postgis.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 | $0.00105 | $0.03297 |
| Opus 5 | $0.00053 | $0.01648 |
| Sonnet 5 | $0.00021 | $0.00659 |
| Haiku 4.5 | $0.00011 | $0.00330 |
Grade A, and why
qgis-impl-postgis 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 — 397 lines — stays where its author put it; the contents beside it link to each section on GitHub.
qgis-impl-postgis
Quick Reference
Core Classes
| Class | Purpose | Module |
|---|---|---|
QgsDataSourceUri |
Build PostGIS connection URIs | qgis.core |
QgsVectorLayer |
Load vector layers from PostGIS | qgis.core |
QgsRasterLayer |
Load raster layers from PostGIS | qgis.core |
QgsProviderRegistry |
Access provider metadata and connections | qgis.core |
QgsAbstractDatabaseProviderConnection |
Execute SQL, discover schemas/tables | qgis.core |
QgsAuthManager |
Secure credential storage and retrieval | qgis.core |
QgsVectorFileWriter |
Export layers to PostGIS | qgis.core |
QgsDataSourceUri Key Methods
| Method | Parameters | Purpose |
|---|---|---|
setConnection() |
host, port, dbname, user, password | Set connection parameters |
setDataSource() |
schema, table, geomColumn, sql, keyColumn | Set table and geometry |
setAuthConfigId() |
configId | Attach auth config (replaces user/password) |
setSrid() |
srid | Set spatial reference ID |
setWkbType() |
wkbType | Set geometry type |
setUseEstimatedMetadata() |
flag | Enable estimated metadata for performance |
setKeyColumn() |
column | Set primary key column |
uri() |
expandAuthConfig (bool) | Return URI string; use False to hide credentials |
Provider Names
| Provider | String | Use Case |
|---|---|---|
| PostGIS Vector | "postgres" |
Vector tables, views, SQL queries |
| PostGIS Raster | "postgresraster" |
Raster tables stored in PostGIS |
Critical Warnings
NEVER store passwords in plain-text URIs in production code. ALWAYS use QgsAuthManager with stored authentication configurations (authcfg). Plain-text passwords leak into logs, project files, and connection strings.
NEVER load PostGIS views without specifying a unique key column -- this causes undefined behavior, duplicate features, and severe performance degradation. ALWAYS pass the key column as the 5th argument to setDataSource().
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 · 397 lines · 105 tokens per session scan A 87fec45f65bf
qgis-impl-postgis is a skill published in the GitHub repository Impertio-Studio/QGIS-Claude-Skill-Package (33 stars, last pushed 2mo ago), licensed MIT. It adds 105 tokens to every session and 3,297 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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