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 agentmods add instructions/imayuur/contexthub/claude-mdgit clone --depth 1 https://github.com/iMayuuR/contexthubWrote 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/instructions/imayuur/contexthub/claude-md)<a href="https://agentmods.dev/instructions/imayuur/contexthub/claude-md"><img src="https://agentmods.dev/badge/instructions/imayuur/contexthub/claude-md.svg" alt="Measured on agentmods" 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 | $0.03373 | $0.03373 |
| Opus 5 | $0.01687 | $0.01687 |
| Sonnet 5 | $0.00675 | $0.00675 |
| Haiku 4.5 | $0.00337 | $0.00337 |
Grade A, and why
contexthub 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 5d 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 — 346 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ContextHub - Development Guide
Project Overview
ContextHub is a persistent AI memory and context orchestration layer for coding agents. It provides automatic context injection, semantic memory search, and repository intelligence for AI coding assistants like Claude Code, Cursor, Windsurf, and any MCP-compatible agent.
Security Note: This codebase has been security-hardened. All data is encrypted at rest (AES-256-GCM), all inputs are validated, and sensitive data is auto-redacted. See
SECURITY.mdfor the full audit report (26 findings, all fixed, 38/38 tests passing).
Architecture
contexthub/
├── packages/
│ ├── shared-types/ # TypeScript interfaces (Session, MemoryEntry, CodeGraph)
│ ├── core/ # Core engine: storage, security, RRF query, config, limits
│ │ ├── security.ts # 🔒 SecurityManager (AES-256-GCM, validation, redaction)
│ │ ├── memory-storage.ts # Encrypted JSON storage with mutex + atomic writes
│ │ ├── contexthub-ignore.ts # .contexthubignore file support
│ │ └── index.ts # ContextHubCore facade
│ ├── cli/ # Command-line interface (25 commands)
│ │ ├── setup.ts # Secure init (no shell hooks, PID management)
│ │ ├── start.ts # Server start with port validation + PID file
│ │ ├── stop.ts # Clean shutdown via SIGTERM/SIGKILL
│ │ ├── dashboard.ts # Interactive web dashboard (Vis.js topology graph)
│ │ ├── watch.ts # Incremental file watcher (graph + embeddings)
│ │ ├── query.ts # Unified RRF query (memory + graph + git)
│ │ └── index.ts # Commander setup with error sanitization
│ ├── mcp-server/ # MCP server (35+ tools, hardened with safeHandler)
│ ├── knowledge-graph/ # Code graph: build/patch, god-nodes, communities, reports
│ ├── vector-engine/ # Embeddings: local bigram TF-IDF, optional transformers
│ ├── repo-parser/ # Code analysis: Tree-sitter (TS/JS/TSX/Py) + regex 15+ langs
│ ├── git-integration/ # Git history: simple-git wrapper
│ ├── docs-ingest/ # Markdown chunk + embed into vector engine
│ ├── plugin-pdf/ # PDF parse (CONTEXTHUB_ENABLE_PDF=1)
│ ├── memory-engine/ # Advanced memory algorithms (compact, archive, dedup)
│ ├── context-injector/ # Smart context retrieval and prompt enhancement
│ ├── agent-connectors/ # AI agent adapters (with safeSaveMemory)
│ └── skills/ # Built-in skills only: architect, debug, review (allowlist)
├── scripts/
│ ├── publish-packages.js # Publish all packages to npm in dependency order
│ └── rename-scope.js # Rename package scope (e.g. @contexthub → @imayuur)
├── docs/ # Marketing site, assets
├── SECURITY.md # 🔒 Full security scan report
└── .contexthub/ # Per-repo encrypted storage (created at runtime)
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.
- 5d ago First seen · 346 lines · 3,373 tokens per session scan A 3292b897832b
contexthub CLAUDE.md is an instructions file published in the GitHub repository iMayuuR/contexthub (0 stars, last pushed 3mo ago), licensed MIT. It adds 3,373 tokens to every session, about $0.0169 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 instructions, from other repositories
aeon CLAUDE.md
Claude Code instructions for aeonfun/aeon, covering aeon, how aeon works, strategy, voice and soul file hierarchy (read in this order).
cognirepo CLAUDE.md
Claude Code instructions for ashlesh-t/cognirepo, covering claude.md, key rules, session start sequence (run in this order), behavioral confirmation rule and personas (cognirepo-402, cognirepo-403).
wayland-core copilot-instructions.md
Copilot instructions for FerroxLabs/wayland-core, covering ijfw rules, output discipline, memory routing, context discipline and cross-audit.
mcp-structured-memory CLAUDE.md
Claude Code instructions for nmeierpolys/mcp-structured-memory, a project described as: Structured Memory MCP Server.
inkwell-memory CLAUDE.md
Instructions for veronchenko/inkwell-memory, covering claude.md — inkwellmemory, layout, multi-tenant mode (inkwellmultitenant=1), conventions and testing.
memory-mcp-1file AGENTS.md
Instructions for pomazanbohdan/memory-mcp-1file, covering ⛔ l0 invariants (never violate under any circumstance), detection heuristic, 🔀 phase transition routing (⛔ blocking), gate-0: phase identification & loading and 🧾 proof-of-load requirement (critical).