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 alexcassol/claude-vb6-skills --skill vb6-utilitiesgit clone --depth 1 https://github.com/alexcassol/claude-vb6-skillsWrote 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/alexcassol/claude-vb6-skills/vb6-utilities)<a href="https://agentmods.dev/skills/alexcassol/claude-vb6-skills/vb6-utilities"><img src="https://agentmods.dev/badge/skills/alexcassol/claude-vb6-skills/vb6-utilities/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/alexcassol/claude-vb6-skills/vb6-utilities"><img src="https://agentmods.dev/badge/skills/alexcassol/claude-vb6-skills/vb6-utilities.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 | $0.00185 | $0.02959 |
| Opus 5 | $0.00093 | $0.01479 |
| Sonnet 5 | $0.00037 | $0.00592 |
| Haiku 4.5 | $0.00018 | $0.00296 |
Grade A, and why
vb6-utilities 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 — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.
VB6 Utilities Catalog
VB6 codebases typically maintain a shared utility module (commonly named
modUtils, modFuncoes, modCommon, or similar) that accumulates helpers
over years of development. Before writing a utility function from scratch,
check whether one already exists.
This catalog describes the functions you are most likely to find. Names and exact signatures vary per project; the names below are representative of the patterns to look for.
Conventions
fg_ prefix — "function global"
Many codebases use the fg_ prefix for stateless utility functions exposed
project-wide. Examples: fg_isNull, fg_Coalesce, fg_InIDE. When you see
this prefix, treat the function as part of the utility layer — reusable,
side-effect-free, safe to call from anywhere.
Dialog wrappers — MsgBoxXxx
Most projects wrap MsgBox to integrate with logging, theming, and consistent
button layouts. Typical names: MsgBoxCritical, MsgBoxInfo, MsgBoxWarning,
MsgBoxQuestion, MsgBoxOption. Use the wrapper, not raw MsgBox.
1. NULL handling
fg_isNull(value, defaultValue) As Variant
Returns defaultValue when value is Null, otherwise returns value.
Equivalent to SQL's ISNULL or COALESCE with one fallback.
strName = fg_isNull(rs("custName").Value, "")
lngCount = fg_isNull(rs("total").Value, 0)
fg_Coalesce(value1, value2, ...) As Variant
Returns the first non-Null value in the list, or Null if all are Null.
strContact = fg_Coalesce(strPhone, strMobile, strEmail, "no contact")
fg_NullIf(value, valueIfEqual) As Variant
Returns the string "Null" (for SQL literal use) when value matches
valueIfEqual, otherwise returns value. Used when building SQL strings
manually.
fg_NullIfDB(value, valueIfEqual) As Variant
Returns actual Null (not the string "Null") when value matches
valueIfEqual, otherwise returns value. Used when assigning to ADO
parameter values.
2. SQL literal formatting (legacy)
What ships with it
1 file 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 · 369 lines · 185 tokens per session scan A efd8a71a0d61
vb6-utilities is a skill published in the GitHub repository alexcassol/claude-vb6-skills (4 stars, last pushed 2mo ago), licensed MIT. It adds 185 tokens to every session and 2,959 once invoked, about $0.0009 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 2026-08-31.
Other skills, from other repositories
bootstrap-solution
Bootstrap or guide a reproducible .NET solution with explicit F# or C# language choice, SDK selection, project layout, test project setup, and initial validation commands.
build-csharp-project
Build or modify idiomatic C# .NET projects using nullable-aware APIs, records/classes, async/task behavior, analyzer conventions, tests, and repo-local validation.
csharp-developer
Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database access with Entity Framework Core, implements async patterns and cancellation, structures applications with CQRS via MediatR, and scaffolds Blazor…
dotnet-core-expert
Use when building .NET 8 applications with minimal APIs, clean architecture, or cloud-native microservices. Invoke for Entity Framework Core, CQRS with MediatR, JWT authentication, AOT compilation.
neo4j-driver-dotnet-skill
Neo4j .NET Driver v6 — IDriver lifecycle, DI registration (singleton), ExecutableQuery fluent API, ExecuteReadAsync/ExecuteWriteAsync managed transactions, IResultCursor (FetchAsync/ ToListAsync), record value access (.Get /As ), null safety, UNWIND batching, temporal types, await using, EagerResult, object mapping…
tia-csharp-common
Internal reference skill — do NOT load directly from user queries.