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/fritzandfriends/blazorwebformscomponents/semantic-pattern-authoringnpx skills add FritzAndFriends/BlazorWebFormsComponents --skill semantic-pattern-authoringgit clone --depth 1 https://github.com/FritzAndFriends/BlazorWebFormsComponentsWhat 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 | $0.00019 | $0.00319 |
| Opus 5 | $0.00010 | $0.00160 |
| Sonnet 5 | $0.00004 | $0.00064 |
| Haiku 4.5 | $0.00002 | $0.00032 |
Grade A, and why
semantic-pattern-authoring 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 3d 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.
What it actually says
Semantic Pattern Authoring
Use when
- A recurring migrated page shape needs a post-transform rewrite.
- The change should stay in
src/BlazorWebFormsComponents.Cli/SemanticPatterns/. - You need targeted tests instead of broad pipeline edits.
Pattern
- Match on post-transform markup/code-behind, not original Web Forms syntax.
- Keep wrapper extraction and markup surgery in subsystem-local helpers.
- Preserve explicit TODO markers for app-specific behavior that the CLI cannot safely infer.
- Prefer compile-safe SSR output over preserving non-runnable validator/postback trees.
- Add isolated tests that assert both pattern IDs and rewritten markup shape.
- For query-bound data pages, prefer
SelectMethod→SelectItemsscaffolds plus[SupplyParameterFromQuery]/[Parameter]component properties when the original Web Forms method relied on model-binding attributes. - For blank action pages, generate an SSR handler scaffold (
NavigationManager, query-bound properties, redirect target,OnParametersSetTODO) instead of leaving inert migrated HTML.
Current examples
pattern-query-details— rewrites query-string / route-dataSelectMethodpages to query-boundSelectItemsstubs withTODO(bwfc-query-details).pattern-action-pages— rewrites action-only redirect pages to SSR handler scaffolds withTODO(bwfc-action-pages).
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.
- 3d ago First seen · 25 lines · 19 tokens per session scan A c54f37d349f6
semantic-pattern-authoring is a skill published in the GitHub repository FritzAndFriends/BlazorWebFormsComponents (449 stars, last pushed 2mo ago), licensed MIT. It adds 19 tokens to every session and 319 once invoked, about $0.0001 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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