What is Swarm CLAUDE.md?

Repository instructions for Swarm, a Swift framework for building software agents and workflows on Apple platforms and Linux. They explain its layout, build and test commands, and optional integrations.

Use them when developing, testing, or reviewing Swarm code and its agent, workflow, tool, memory, or integration components.

They give coding agents the project’s design rules and everyday commands before they modify the framework.

How christopherkarani/Swarm configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to christopherkarani/Swarm. 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/christopherkarani/Swarm/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/christopherkarani/Swarm

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/christopherkarani/swarm/claude-md/github.svg)](https://agentmods.dev/instructions/christopherkarani/swarm/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/christopherkarani/swarm/claude-md"><img src="https://agentmods.dev/badge/instructions/christopherkarani/swarm/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/christopherkarani/swarm/claude-md"><img src="https://agentmods.dev/badge/instructions/christopherkarani/swarm/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 4,360 This file is loaded in full into every session.

When invoked 4,360 The same file — it is already loaded in full.

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	$0.04360	$0.04360
Opus 5.5	$0.01744	$0.01744
Sonnet 5.5	$0.00872	$0.00872
Haiku 4.5	$0.00436	$0.00436

Measured 1mo ago against content hash 0a57cdee05c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Swarm CLAUDE.md 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 1mo 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.

CLAUDE.md · 356 lines

How it starts

The opening of the file, as written. The whole thing — 356 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for AI coding assistants (Claude Code, Cursor, etc.) working in this repository. This file is the canonical, in-repo briefing — read it before making changes.

What is Swarm?

Swarm is a Swift 6.2 framework for building agents and multi-agent workflows on Apple platforms (iOS 26+, macOS 26+, tvOS 26+) and Linux. It is built around:

Agents — Agent struct with @ToolBuilder trailing closures, an AgentRuntime protocol, and pluggable inference providers.
Workflows — fluent composition (.step, .parallel, .route, .repeatUntil) compiled to a DAG with checkpoint/resume.
Tools — the @Tool macro generates JSON schemas from Swift structs at compile time; FunctionTool covers ad-hoc closures.
Memory — conversation, sliding-window, summary, vector, and persistent backends.
Guardrails / Resilience / Observability — first-class concerns, not bolt-ons.
Providers — Built-in Apple Foundation Models; custom backends inject InferenceProvider. No Conduit / cloud façade ships with Swarm.
MCP — Model Context Protocol client and server support.

The package uses Swift 6.2 with StrictConcurrency enabled across all targets. All public types must be Sendable — the compiler enforces it.

Repository Layout

Swarm/
├── Package.swift                  # SPM manifest (Swift 6.2, products)
├── README.md                      # User-facing overview
├── Sources/
│   ├── Swarm/                     # Main library (156 .swift files)
│   │   ├── Agents/                # Agent struct, workspace integration
│   │   ├── Core/                  # AgentRuntime, Conversation, Environment,
│   │   │                          #   PromptEnvelope, RuntimeMetadata, …
│   │   ├── Workflow/              # Workflow + durable engine + checkpointing
│   │   ├── Tools/                 # Tool protocol, ToolCollection, ParallelExecutor,
│   │   │                          #   built-ins, web tools, schema bridging
│   │   ├── Memory/                # Conversation, sliding window, summary, vector,
│   │   │                          #   SwiftData, ContextCore, hybrid backends
│   │   ├── Providers/             # Foundation Models, multi-provider, sessions
│   │   ├── Guardrails/            # Input/Output/Tool guardrail specs + runner
│   │   ├── Resilience/            # Retry, circuit breaker, fallback, rate limit
│   │   ├── Observability/         # AgentTracer, SwiftLog/OSLog tracers, metrics
│   │   ├── MCP/                   # MCPClient, MCPServerConnection, stdio/HTTP transports, ToolBridge
│   │   ├── Workspace/             # AgentWorkspace (AGENTS.md, .swarm/ skills)
│   │   ├── Macros/                # Public macro declarations
│   │   ├── Integration/           # Membrane and Wax integrations
│   │   └── Internal/GraphRuntime/ # Compiled DAG runtime (internal)
│   ├── HiveCore/                  # In-tree durable graph (Integrations only)
│   ├── MembraneCore/              # In-tree Membrane core (Integrations only)
│   ├── Membrane/                  # In-tree Membrane session (Integrations only)
│   ├── MembraneContextCore/       # In-tree Membrane↔ContextCore (Integrations)
│   ├── ContextCoreTypes/          # In-tree ContextCore types (Integrations)
│   ├── ContextCoreShaders/        # In-tree Metal shaders (Integrations)
│   ├── ContextCoreEngine/         # In-tree ContextCore engine (Integrations)
│   ├── ContextCore/               # In-tree ContextCore façade (Integrations)
│   ├── SwarmMacros/               # Compiler plugin (@Tool, @Parameter,
│   │                              #   @Traceable, #Prompt, builders)
│   ├── SwarmMembrane/             # Deprecated hollow re-export (remove in 0.7.0)
│   ├── SwarmMCP/                  # MCP server adapter product
│   ├── SwarmCapabilityShowcase/        # Executable: deterministic showcase CLI
│   ├── SwarmCapabilityShowcaseSupport/ # Library backing the showcase
│   ├── SwarmDemo/                 # (opt-in) demo executable
│   └── SwarmMCPServerDemo/        # (opt-in) MCP server demo
├── Tests/
│   ├── SwarmTests/                # Main test target (mirrors Sources/Swarm)
│   │   └── Mocks/                 # MockAgentRuntime, MockInferenceProvider, …
│   ├── HiveSwarmTests/            # Hive integration tests
│   ├── SwarmMacrosTests/          # Macro expansion tests
│   └── SwarmCapabilityShowcaseTests/
├── Examples/CodeReviewer/         # Standalone example SPM project
├── docs/
│   ├── guide/                     # Getting started, agent workspace, showcase
│   ├── reference/                 # API catalog, front-facing-api, audits
│   └── release/                   # release-checklist.md
└── .github/workflows/             # swift.yml, claude.yml, claude-code-review.yml,
                                   #   docs.yml

Read the full file on GitHub · 356 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.

1mo ago Changed · +1 lines · +21 tokens per session 0a57cdee05c1
1mo ago Changed · +2 tokens per session 4ac69d381e49
2mo ago First seen · 355 lines · 4,337 tokens per session scan A 2bd08d4a578d

Subscribe to this mod's changes

Swarm CLAUDE.md is an instructions file published in the GitHub repository christopherkarani/Swarm (587 stars, last pushed 3d ago), licensed MIT. It adds 4,360 tokens to every session, about $0.0174 per session on Opus 5.5. 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.

LangChain agent ai ai-agents foundation-models swift

Swarm CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Swarm CLAUDE.mdchristopherkarani/Swarm	Instructions file	587	3d ago	MIT	A	4,360	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

Swarm: Instructions file for Claude Code