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 agentmods add skills/sidequery/sidemantic/webapp-buildernpx skills add sidequery/sidemantic --skill webapp-buildergit clone --depth 1 https://github.com/sidequery/sidemanticWhat 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 | $0.00119 | $0.04749 |
| Opus 5 | $0.00060 | $0.02374 |
| Sonnet 5 | $0.00024 | $0.00950 |
| Haiku 4.5 | $0.00012 | $0.00475 |
Grade A, and why
webapp-builder 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 2d 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
12 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.
- agents/openai.yaml 283 B
- assets/templates/static-dashboard/app.js 6.5 KB runs code
- assets/templates/static-dashboard/index.html 1.5 KB
- assets/ui-dist/sidemantic-ui-static.js 290 KB runs code
- assets/ui-dist/sidemantic-ui.css 26 KB
- assets/ui-dist/sidemantic-ui.js 161 KB runs code
- references/webapp-patterns.md 13 KB
- scripts/copy_components.py 4.3 KB runs code
- scripts/inspect_layer.py 15 KB runs code
- scripts/scaffold_static_app.py 4.1 KB runs code
- scripts/verify_static_app.py 7.4 KB runs code
- scripts/verify_static_interactions.mjs 11 KB runs code
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.
- 2d ago First seen · 293 lines · 119 tokens per session scan A 1cb7a8cbeac9
webapp-builder is a skill published in the GitHub repository sidequery/sidemantic (117 stars, last pushed 8d ago), licensed AGPL-3.0. It adds 119 tokens to every session and 4,749 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.
Other skills, from other repositories
build-scaling-experiment
Build and submit a scaling benchmark experiment. Use when the goal names a scale-varying investigation (e.g. how does X scale from N to M rows, is the growth linear, or at what size does Y break).
read-experiment-results
Read and analyze completed benchmark experiment results. Use when an experiment status is complete and you need to compare engines, speedups, scaling, replication stability, or raw timings.
dbt-expert
Expert-level dbt (data build tool), models, tests, documentation, incremental models, macros, and Jinja templating.
speckit-tasks
Generate an actionable, dependency-ordered tasks.md for the feature based on available design artifacts.
speckit-implement
Execute the implementation plan by processing and executing all tasks defined in tasks.md.
speckit-taskstoissues
Convert existing tasks into actionable, dependency-ordered GitHub issues for the feature based on available design artifacts.