# Fablesecondbrain > Public, source-cited Fable 5, Mythos, Claude Code, and agent-operations second brain. Not affiliated with Anthropic. - **Type:** MCP server - **Install:** `agentstack add mcp-agricidaniel-fablesecondbrain` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [AgriciDaniel](https://agentstack.voostack.com/s/agricidaniel) - **Installs:** 0 - **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [AgriciDaniel](https://github.com/AgriciDaniel) - **Source:** https://github.com/AgriciDaniel/fablesecondbrain - **Website:** https://agricidaniel.github.io/fablesecondbrain ## Install ```sh agentstack add mcp-agricidaniel-fablesecondbrain ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # Fable 5 Brain Public, source-cited Obsidian brain for Claude Fable 5, Claude Mythos 5, Project Glasswing, Claude Code, and current agent-operations practice. This is a public research repository. It is not affiliated with, endorsed by, or sponsored by Anthropic, and its content is derived from public sources. Browsable vault site: [https://agricidaniel.github.io/fablesecondbrain/](https://agricidaniel.github.io/fablesecondbrain/). > Public research repository. Not affiliated with, endorsed by, or sponsored by > Anthropic. Content is derived from public sources. Raw operator captures, > private notes, API credentials, and account-specific exports are omitted from > this public release. ## Status - Maturity: market-ready by `python scripts/audit_brain.py --require market-ready` - Current wiki pages: 109 - Current source ledger entries: 96 - Current claim-ledger rows: 187 - Canonical operator entrypoint: `SKILL.md` - Canonical vault entrypoint: `wiki/hot.md` ## What This Is Fable 5 Brain is a working knowledge vault and agent operating layer. It turns dated public sources, public-safe corpus metadata, and verified claims into: - Obsidian notes with frontmatter, wikilinks, source URLs, and confidence tags. - Operator playbooks for Claude Fable 5, Mythos-class models, and Claude Code. - Source and claim ledgers that make factual drift visible. - Audit scripts that gate the brain before it is called market-ready. - A sanitized static landing page in `site/` for GitHub Pages-style publishing. The brain is advisory. It does not mutate accounts, production systems, pipelines, books, customer records, or live infrastructure. ## Knowledge Graph Every note carries frontmatter, wikilinks, and source citations, so the vault forms one densely connected Obsidian graph. Navigation stays fast and factual drift stays visible. ## Buyer, Outputs, Boundaries The buyer for this repository is an operator, research owner, or agent team that needs a verifiable second brain for Fable, Mythos, Claude Code, and related agent practice. The expected outputs are a navigable Obsidian vault, source and claim ledgers, operator playbooks, audit scripts, reusable templates, and a sanitized GitHub Pages landing page. The boundaries are explicit: this brain is advisory, source-cited, and read-only by default. It does not grant rights to third-party material, publish raw captures, make legal claims, or automate changes to live systems without a separate approval and rollback process. ## Publish Safety This repository contains research about public prompt material and public discussion of prompt mirrors. Public availability does not automatically grant copyright, trademark, confidentiality, or redistribution rights. This is not legal advice. Rules before pushing or publishing: - Keep `.raw/` source captures out of Pages, releases, and public ZIPs. - Do not publish API keys, account exports, cookies, tokens, private user data, or local machine secrets. - Keep GitHub Pages sanitized. The `site/` folder is designed for public-safe summary content only. - Treat Anthropic, Claude, Fable, Mythos, and Project Glasswing names as third party marks and use them only descriptively. See `PUBLISHING_NOTICE.md` for the rights and provenance policy. ## Repository Map ```text . |-- .github/ # manual GitHub Pages workflow |-- .claude-plugin/ # Claude Code plugin and marketplace metadata |-- SKILL.md # agent entrypoint and operating procedure |-- CODEX.md # vault runtime instructions |-- wiki/ # Obsidian brain, notes, hubs, hot cache |-- references/ # source ledger, claim ledger, canon, adapters |-- docs/ # operator docs and product boundaries |-- agents/ # agent templates and handoff material |-- specs/ # Brainstein project spec |-- fable_5_brain/ # Python package and CLI |-- scripts/ # audit, package, scaffold, visual/report tools |-- tests/ # import/export and pipeline checks |-- examples/sample-vault/ # deterministic demo vault |-- assets/ # template brain assets and SVGs |-- images/ # repository cover and graph images |-- site/ # sanitized Quartz site and content mirror |-- install.sh # local install helper |-- uninstall.sh # local uninstall helper `-- .raw/ # public stub; raw captures omitted ``` Folder guides: - `wiki/README.md` - `references/README.md` - `site/README.md` - `.raw/README.md` ## How It Works 1. Public source material enters `references/source-ledger.json`; private raw captures stay outside this public release. 2. Claims are verified into `references/claim-ledger.md`. 3. Wiki notes cite sources and carry confidence tags. 4. Hubs, `wiki/hot.md`, `wiki/index.md`, and `wiki/overview.md` keep navigation current. 5. Audits enforce source coverage, Obsidian hygiene, adapters, tests, docs, and product clarity. The working doctrine is simple: no source, no claim. No verification path, no release. ## Core Topics - Claude Fable 5 model behavior, pricing, refusals, fallback, and adaptive thinking. - Claude Mythos 5 and the Mythos-class model tier. - Project Glasswing, trusted access, and dual-use safety posture. - Claude Code workflows: CLAUDE.md, hooks, subagents, skills, permissions, sandboxing, MCP, and headless usage. - Prompting, context engineering, source-led research, and multi-agent fan-out. - Public prompt-copy corroboration and GitHub leak-sweep findings. ## Quick Start ```bash python -m pip install -e . python scripts/lint_vault.py --vault . python scripts/audit_brain.py --require market-ready ``` Demo vault: ```bash fable-5-brain demo fable-5-brain lint --vault examples/sample-vault fable-5-brain visuals --vault examples/sample-vault fable-5-brain report --vault examples/sample-vault --html-only ``` Create a client vault: ```bash fable-5-brain new acme --client-name "Acme Co" --owner "Your Name" --out-dir ~/fable-5-brain-vaults fable-5-brain ingest --vault ~/fable-5-brain-vaults/acme --file tests/fixtures/sample-source.md fable-5-brain synthesize --vault ~/fable-5-brain-vaults/acme fable-5-brain visuals --vault ~/fable-5-brain-vaults/acme fable-5-brain report --vault ~/fable-5-brain-vaults/acme --html-only fable-5-brain next --vault ~/fable-5-brain-vaults/acme ``` ## Verification ```bash python -m compileall scripts fable_5_brain tests python tests/test_import_export.py python scripts/lint_vault.py --vault . python scripts/audit_brain.py --json python scripts/audit_brain.py --require market-ready ``` Release packaging is intentionally stricter and requires a clean reproducible worktree: ```bash python scripts/package_release.py --version 0.1.0 python scripts/package_release.py --version 1.0.0 --release-type market-ready ``` ## GitHub Pages The browsable vault site is live and public at [https://agricidaniel.github.io/fablesecondbrain/](https://agricidaniel.github.io/fablesecondbrain/). It is built from `site/` and deployed by the manual workflow at `.github/workflows/pages.yml`. The site excludes `.obsidian`, `hot.md`, and `log.md`; the accounts section contains only public-safe tier information. It must never expose raw captures, full prompt material, ledgers, credentials, tokens, or local machine paths. GitHub's own docs warn that Pages visibility is separate from repository visibility and can make a site public even when the repository is private. Confirm the desired Pages visibility in repository settings before running the manual workflow. ## License Code in this repository is licensed under the MIT License. Vault content is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0), as described in `LICENSE-CONTENT.md`. Third-party source material, product names, documentation excerpts, and cited public artifacts remain the property of their respective owners and are not relicensed by this repository. ## Community and Support Questions, updates, and operator support for this brain live in the AI Marketing Hub Pro community: https://www.skool.com/ai-marketing-hub-pro. Community membership is required. Use GitHub Issues for bugs and repository questions. See `SUPPORT.md` for support details, `SECURITY.md` for sensitive reports, and `CONTRIBUTING.md` for contribution workflow. ## Source & license This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [AgriciDaniel](https://github.com/AgriciDaniel) - **Source:** [AgriciDaniel/fablesecondbrain](https://github.com/AgriciDaniel/fablesecondbrain) - **License:** MIT - **Homepage:** https://agricidaniel.github.io/fablesecondbrain Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/mcp-agricidaniel-fablesecondbrain - Seller: https://agentstack.voostack.com/s/agricidaniel - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.