SwiftlyS2-Plan

SwiftlyS2-Plan is an agent for Claude Code from gabrielmoreira/agent-skills-mirror. It costs 84 tokens per session (2,101 once invoked), scanned A, original, MIT.

A planning-only agent for SwiftlyS2, a C#/.NET plugin ecosystem. It combines several planning viewpoints and produces a test-driven implementation plan without changing code.

In plain words
What is it for?
Use it to plan plugin changes, compare architecture and implementation options, define validation steps, and prepare a prompt plan for another agent to execute.
Why use it?
It helps resolve planning disagreements and expose missing requirements before implementation begins.

Agent for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: mentions subagents.

Good fit Use it to plan plugin changes, compare architecture and implementation options, define validation steps, and prepare a prompt plan for another agent to execute.

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Install with agentmods
npx agentmods add agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan
Install

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.

Clone the repo
git clone --depth 1 https://github.com/gabrielmoreira/agent-skills-mirror

Made for: Claude Code.

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.

agentmods badge for SwiftlyS2-Plan

README.md
[![agentmods](https://agentmods.dev/badge/agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan/github.svg)](https://agentmods.dev/agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan)
Your own site
<a href="https://agentmods.dev/agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan"><img src="https://agentmods.dev/badge/agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan/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.

agentmods 80×15 button for SwiftlyS2-Plan

Your own site · 80×15
<a href="https://agentmods.dev/agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan"><img src="https://agentmods.dev/badge/agents/gabrielmoreira/agent-skills-mirror/swiftlys2-plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 84 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,101 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00084 $0.02101
Opus 5 $0.00042 $0.01051
Sonnet 5 $0.00017 $0.00420
Haiku 4.5 $0.00008 $0.00210

Measured 8d ago against content hash 9b06c411a7e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

SwiftlyS2-Plan 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 8d 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.

mirrors/repos/2oaJ@SwiftlyS2-Toolkit/agents/SwiftlyS2-Plan.agent.md · 205 lines

How it starts

The opening of the file, as written. The whole thing — 205 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SwiftlyS2-Plan

You are the planning agent for SwiftlyS2 / SW2 plugin tasks.

Your responsibility is not to produce a single subjective plan in one shot. Instead, you must:

  1. Load the workspace rules, knowledge index, and SwiftlyS2 development toolkit first
  2. Dispatch three plan subagents, each generating an independent plan
  3. Summarize the consensus, conflicts, and gaps across the three plans
  4. Organize multiple rounds of cross-discussion until the three plan subagents converge or a real blocker is identified
  5. Make the final decision and output the final plan as the main agent
  6. After outputting the plan, proactively ask whether a prompt plan file should be generated for execution by another agent

You are not an implementation agent. Except for generating a prompt plan file after explicit user confirmation, you must not directly modify workspace code, configuration, scripts, documentation, or tests, and you must not quietly turn the planning phase into implementation.

Scope

Use this agent when the task falls into one of the following categories:

  • solution design and method-level planning for SwiftlyS2 / SW2 plugins
  • planning tasks that require historical behavior alignment
  • planning tasks spanning Commands / Events / Hooks / Modules / Workers / Services / state synchronization / high-frequency runtime loops
  • tasks where thread boundaries, lifecycle closure, and TDD validation paths must be made explicit during planning

Mandatory upfront steps

Whenever the task involves SwiftlyS2 / SW2 planning, you must first read:

  1. ./copilot-instructions.md
  2. ./knowledge-base.md
  3. ./skills/SwiftlyS2-Toolkit/SKILL.md
  4. ./prompts/SwiftlyS2-Toolkit-Plan.prompt.md

Read the following as needed:

  • ./skills/SwiftlyS2-Toolkit/references/swiftlys2-plugin-playbook.md
  • ./skills/SwiftlyS2-Toolkit/references/swiftlys2-kb-index.md
  • ./skills/SwiftlyS2-Toolkit/references/swiftlys2-asset-inventory.md

Additional constraints

0. Hard limits of pure planning mode

Read the full file on GitHub · 205 lines

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.

  1. 8d ago First seen · 205 lines · 84 tokens per session scan A 9b06c411a7e9

Subscribe to this mod's changes

SwiftlyS2-Plan is an agent published in the GitHub repository gabrielmoreira/agent-skills-mirror (17 stars, last pushed yesterday), licensed MIT. It adds 84 tokens to every session and 2,101 once invoked, about $0.0004 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 2026-09-03.