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Semantic Pattern Authoring · fritzandfriends | DecimalAI

codingby fritzandfriends

Semantic Pattern Authoring

fritzandfriends/semantic-pattern-authoring

Source fritzandfriends/blazorwebformscomponents ↗License MIT

Author isolated migration CLI semantic patterns without leaking behavior into Layer 1 transforms

SkillScore86Maintained

Automatic

Coding pack

Last verified 8/19/2026

What it changes

Passed 18 of 21 test cases with the skill, and 11 of 21 without it.

Without skill50%

With skill86%

Checks it passed that the model alone missed

Includes OnParametersSet with explicit TODO markers
Asserts pattern IDs in the transformation unit tests
Replaces SelectMethod bindings with SelectItems scaffolds

and 6 more in the full report

9 fixed10 passed either way2 still failing1 broke

Pass-rate lift: +36 pp
Tokens: -42%
Agent turns: 0%
Response time: -54%

Model gemini-3.6-flashMeasured 8/19/2026v119 of 22 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/fritzandfriends-semantic-pattern-authoring/SKILL.md https://app.decimal.ai/s/fritzandfriends-semantic-pattern-authoring/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add fritzandfriends-semantic-pattern-authoring, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/fritzandfriends-semantic-pattern-authoring/ and pins it in .decimal/skills.lock

decimalai skills add fritzandfriends-semantic-pattern-authoring

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/fritzandfriends-semantic-pattern-authoring/SKILL.md https://app.decimal.ai/s/fritzandfriends-semantic-pattern-authoring/SKILL.md

Raw file: /s/fritzandfriends-semantic-pattern-authoring/SKILL.md ↗ · machine-readable summary at /s/fritzandfriends-semantic-pattern-authoring.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 9

Prompt

What specific comment tag convention is used in query details semantic patterns within BlazorWebFormsComponents.Cli when manual review of business parameters is needed?

What was checked, without and with the skill
Checked	Without skill	With skill
Includes TODO(bwfc-query-details) for unhandled query-details logic	Missed	Passed

case-16 · gemini-3.6-flash · 8/19/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md19 linessingle file

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 → SelectItems scaffolds 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, OnParametersSet TODO) instead of leaving inert migrated HTML.

Current examples

pattern-query-details — rewrites query-string / route-data SelectMethod pages to query-bound SelectItems stubs with TODO(bwfc-query-details).
pattern-action-pages — rewrites action-only redirect pages to SSR handler scaffolds with TODO(bwfc-action-pages).

Track record

Benchmark

18 / 21

test cases passed, vs 11 / 21 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

fritzandfriends / blazorwebformscomponents

.squad/skills/semantic-pattern-authoring/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

Semantic Pattern Authoring

Use when

Pattern

Current examples

Track record

Benchmark

Adoption

SkillSafety

Source

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