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Web Forms Data Access & Architecture Migration · fritzandfriends | DecimalAI

codingby fritzandfriends

Web Forms Data Access & Architecture Migration

fritzandfriends/bwfc-data-migration

Source fritzandfriends/blazorwebformscomponents ↗License MIT

**WORKFLOW SKILL** — Migrate Web Forms data access and architecture to Blazor Server. Covers EF6→EF Core with IDbContextFactory, Session→SessionShim, Global.asax→Program.cs, Web.config→appsettings.json, DataSource controls→service injection. WHEN: "migrate EF6", "session state to services", "Global.asax to Program.cs", "data access migration", "SelectMethod to delegate". INVOKES: dotnet CLI for EF migrations. FOR SINGLE OPERATIONS: use bwfc-migration for markup, bwfc-identity-migration for auth.

SkillScore100Maintained

Automatic

Coding pack

Last verified 8/19/2026

What it changes

Passed 22 of 22 test cases with the skill, and 14 of 22 without it.

Without skill64%

With skill100%

Checks it passed that the model alone missed

Configures UseNpgsql in Program.cs.
Injects SessionShim into the class.
Avoids injecting IHttpContextAccessor.

and 8 more in the full report

8 fixed14 passed either way0 still failing0 broke

Pass-rate lift: +36 pp
Tokens: +227%
Agent turns: 0%
Response time: -38%

Model gemini-3.6-flashMeasured 8/19/2026v122 of 22 cases passed with skill

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-bwfc-data-migration/SKILL.md https://app.decimal.ai/s/fritzandfriends-bwfc-data-migration/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add fritzandfriends-bwfc-data-migration, 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-bwfc-data-migration/ and pins it in .decimal/skills.lock

decimalai skills add fritzandfriends-bwfc-data-migration

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

curl -fsSL --create-dirs -o .claude/skills/fritzandfriends-bwfc-data-migration/SKILL.md https://app.decimal.ai/s/fritzandfriends-bwfc-data-migration/SKILL.md

Raw file: /s/fritzandfriends-bwfc-data-migration/SKILL.md ↗ · machine-readable summary at /s/fritzandfriends-bwfc-data-migration.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 8

Prompt

How should a Blazor page component inheriting `WebFormsPageBase` retrieve the stored user string from `Session["UserName"]`?

What was checked, without and with the skill
Checked	Without skill	With skill
Reads Session["UserName"] directly from WebFormsPageBase.	Passed	Passed
Avoids injecting IHttpContextAccessor.	Missed	Passed

case-11 · 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.md585 linessingle file

Web Forms Data Access & Architecture Migration

Overview

Covers data access and architecture migration — the Layer 2/3 decisions requiring project-specific judgment.

Related: /bwfc-migration (markup), /bwfc-identity-migration (auth)

When to Use This Skill

Convert SelectMethod string → SelectHandler delegate, replace DataSource controls with service injection
Migrate Entity Framework 6 → EF Core
Convert Session/ViewState/Application state to Blazor patterns
Migrate Global.asax → Program.cs, Web.config → appsettings.json
Replace HTTP Handlers/Modules with middleware

Critical Rules

Session State Migration

Use SessionShim (Default — Works Everywhere)

Pages inheriting WebFormsPageBase get a Session property backed by SessionShim. SessionShim works in BOTH SSR and interactive modes:

SSR: Reads/writes to ASP.NET Core ISession (cookie-backed)
Interactive: Uses in-memory ConcurrentDictionary scoped per circuit

Original Web Forms:

Session["CartId"] = Guid.NewGuid().ToString();
var cartId = Session["CartId"].ToString();
Session["payment_amt"] = 99.99m;

Migrated Blazor (IDENTICAL):

Session["CartId"] = Guid.NewGuid().ToString();
var cartId = Session["CartId"].ToString();
Session["payment_amt"] = 99.99m;

Track record

Benchmark

22 / 22

test cases passed, vs 14 / 22 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

migration-toolkit/skills/bwfc-data-migration/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

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Published skills whose descriptions closely match this one, with their headline benchmark lift.

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See it in action

What's inside

Web Forms Data Access & Architecture Migration

Overview

When to Use This Skill

Critical Rules

Session State Migration

Use SessionShim (Default — Works Everywhere)

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills