A repository-start workflow for work that may edit files, change dependencies, or need roadmap, documentation, or architecture-decision context. An ADR is a written record of an important technical decision.

Use it at the beginning of substantial repository tasks to inspect the workspace, identify the repository role, read planning context, and report available project-board access.

It checks the repository and project-board context before work begins, including whether the checkout is the main repository or a fork and whether the board can be edited.

How Krzysztof318/MailFathom configures Codex

Reuse

Borrowing it

Nothing to install: this file belongs to Krzysztof318/MailFathom. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Krzysztof318/MailFathom/main/.agents/skills/start-task/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/Krzysztof318/MailFathom

Made for: Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/krzysztof318/mailfathom/start-task.svg)](https://agentmods.dev/skills/krzysztof318/mailfathom/start-task)

Your own site

<a href="https://agentmods.dev/skills/krzysztof318/mailfathom/start-task"><img src="https://agentmods.dev/badge/skills/krzysztof318/mailfathom/start-task.svg" alt="Measured on agentmods" height="20"></a>

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,811 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00026	$0.02811
Opus 5	$0.00013	$0.01406
Sonnet 5	$0.00005	$0.00562
Haiku 4.5	$0.00003	$0.00281

Measured 4d ago against content hash 8839b71c17a6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

start-task 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 4d 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.

.agents/skills/start-task/SKILL.md · 180 lines

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.

Read it on GitHub

Files

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.

agents/openai.yaml 423 B

Changes

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.

4d ago Changed 8839b71c17a6
8d ago First seen · 180 lines · 26 tokens per session scan A 52361f8a9c5c

Subscribe to this mod's changes

start-task is a skill published in the GitHub repository Krzysztof318/MailFathom (14 stars, last pushed today), licensed AGPL-3.0. It adds 26 tokens to every session and 2,811 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.

C# and .NET Planning Writing and docs ai-agents aspnet-core clean-architecture dotnet dotnet-aspire

backend-conventions

Backend convention reference (.NET 10 / C# 13). Auto-injected into backend-aware agents - not user-invocable.

fpindej/netrock · 27 tokens

add-options-class

Add a typed options/configuration class with validation.

fpindej/netrock · 9 tokens

clean-architecture-dotnet

Use when domain logic leaks into API/Infrastructure, project references violate layer boundaries, or you need to decide between CQS (always), CQRS bus (complex domains), and DDD patterns (invariants and events).

SebastienDegodez/copilot-instructions · 50 tokens

sentry

Use when adding error tracking, performance monitoring, and release health to .NET applications — ASP.NET Core, MAUI, WPF, Blazor, EF Core integration. Sentry .NET SDK: cross-platform error and performance monitoring with source map support, breadcrumbs, and alerting.

znlgis/opengis-skills · 60 tokens

creating-dotnet-mcp-servers

Use when building Model Context Protocol (MCP) servers in .NET, configuring tools, transports (SSE/stdio), JSON serialization for AOT, or testing MCP endpoints.

SebastienDegodez/copilot-instructions · 43 tokens

ddd

Domain-Driven Design patterns for .NET — aggregates, value objects, strongly-typed IDs, domain events, repositories, and layer rules.

zdanovichnick/dotnet-pilot · 30 tokens

MailFathom: Skill for Codex