
Enzyme
io.github.byenzymePublished by GitHub account byenzymev0.13.2Updated Nov 2, 2026
Semantic search and pattern discovery for Obsidian and markdown vaults.
Overview
Enzyme builds a local semantic index over Obsidian and Markdown vaults so an assistant can search notes by meaning and follow generated questions to related…
- What you can do
- Search a Markdown vault by wording and meaning together, with each result tied to the question that best connects it to the query
- Inspect the map of generated questions (catalysts) grouped by tag or folder before searching
- Compile a workspace program that proposes which folders, tags and profiles to index, and rebuild or refresh the local index
- Index SQLite tables such as message archives alongside Markdown, mapping columns to roles like who, when and what
- Answer questions that span many notes written over time, returning passages with source links
- When to use it
- Useful for fast-growing personal knowledge bases — Obsidian vaults, meeting notes, Markdown CRM setups or agent memory written as Markdown — where questions span many notes written over time rather than a single page.
- Requirements
- Runs as a local desktop process (macOS or Linux builds). Needs a path to the Markdown vault via ENZYME_VAULT_PATH. An API key is only needed for catalyst generation and the Markdown compile selection step; a hosted bootstrap, a local model, or no model at all are alternatives. Refresh, publishing and extra vaults require an enzyme login.
Installation
In SourceWeft
- Open Enzyme in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
🧬 Enzyme
Enzyme compiles your notes and other knowledge sources into a local index that:
- Uses temporally grounded context sampling that captures the contextual use of tags and wikilinks, or natural accumulation in folders (i.e. pseudo-Zettelkasten)
- With this context, it "dreams" questions in the background (called catalysts) and embeds them. At query time, each question finds its nearest docs, so it avoid needing to "dream" full summaries. (see note)
- Keeps refreshing, but separates new doc ingestion (local, fast) from catalyst evolution (cheap, periodic)
The catalysts help orient the agent to the wiki. Enzyme saves up to 50% tokens vs. plain agentic search with grep.
[Notes and agent-written memories that mention a person arrive over time. Enzyme writes one question from them once, and later notes attach to it without rewriting it. When a query comes in, the agent reads the relevant questions, aims two searches at the periods they point to, and gets back passages from across those years.](Note: your system may already generate lots of memories in different buckets; Enzyme catalysts help thread them together)
Get started
Open your Markdown notes folder with your agent and paste this prompt.
After setup, keep working with your agent as usual. The new guidance tells your agent how to use Enzyme and when to refresh it.
Prefer to install it yourself first? Run this, then paste the same prompt:
What it's for
Enzyme was built for knowledge bases that grow quickly:
- Obsidian vaults that accumulate dated notes in a few folders
- Meeting notes and AI-native, Markdown CRM setups
- Agent memory written as Markdown
At setup time, it proposes a .enzyme program by reading your wiki and existing agent instructions, like:
And you can give feedback to modify the program.
Enzyme helps most when a question spans many notes written over time: context for a decision on a project, or a broader theme arising from conversations with one person. It's designed to support knowledge captures that might be later be important, even if they don't serve a current task. Enzyme is focused on doing one thing well: giving agents the tools to make ideas compound. And it ships with a set of profiles designed around a personal knowledge base
were refined over 2 years of personal use:
Reference
Setup without an agent
compile proposes settings and saves them; init builds the local index from
them; doctor reports what was indexed and any problems.
Other sources
For Apple Notes, a preset builds a named workspace program from your Notes
database. Review the saved .enzyme program before running init:
For Are.na, use enzyme --workspace <name> compile --preset arena <channel-url>
and then enzyme --workspace <name> init. Run refresh with the
same --workspace name to pick up later changes (--collection is an accepted
alias).
Retrieval commands
enzyme petri shows what Enzyme found worth asking about. In a terminal it renders a tree; piped, it emits JSON.
An agent reads this map first, then searches. enzyme catalyze ranks notes by wording and meaning together, and each result carries the catalyst that best connects it to the query:
Message archives (experimental)
Enzyme indexes SQLite tables alongside Markdown — iMessage, WhatsApp, Mail, or any table of dated rows.
Declare a source sqlite inside a named workspace program, then run init
and periodic refresh. The SQLite source setup skill
shows the source declaration and source-scoped readings.
None of these is a special case. A handle_id column is repeated person values across dated rows, the same way [[links]] are repeated person values across dated notes. Both collapse to entity occurrences with effective dates, and nothing downstream knows which one it came from: the same profiles, budgets, and catalysts apply to a message thread and a folder of meeting notes.
A source names columns by the role they play rather than by the app they came from:
API keys
Enzyme needs an API key only for catalyst generation and for Markdown enzyme compile's selection step. Source preset compilation does not call a model. By default enzyme init uses Enzyme's hosted bootstrap and ignores inherited OPENAI_* variables so it does not spend your personal key. Credential resolution is explicit key → configured local model → anonymous brokered free config, with no additional configuration.
The first configured vault on a machine initializes without login. Refresh, publishing, account credits, and additional vaults require enzyme login.
To bring your own OpenAI-compatible key, pass --llm env (alias --use-env-llm), which reads only OPENAI_API_KEY plus optional OPENAI_BASE_URL and OPENAI_MODEL. init and refresh also take --llm local (the installed local model; fails if none is installed), --llm hosted, and --llm none (index, embed, and select without generating catalysts). Without --llm and without any hosted or env key, catalyst generation is skipped and indexing, embedding, and local search still work.
A model served on your own machine (LM Studio, Ollama, a llama.cpp server) works through --llm env with OPENAI_BASE_URL pointing at it; OPENAI_API_KEY must be non-empty even if the server ignores it. Enzyme treats localhost addresses like its built-in 135M model: a compact prompt, at most 10 excerpts per entity, one call per entity, and a 512-token output cap. That includes a proxy on localhost in front of a remote provider. For a larger model, set ENZYME_LOCAL_MODEL=0 to send it the same prompts and job splitting as hosted generation (ENZYME_LOCAL_MODEL=1 does the reverse for a small fine-tune hosted elsewhere). That path runs up to 8 calls at once and each request must finish within 120 seconds, so on a slower model set ENZYME_LLM_CONCURRENCY to what the server handles and lower ENZYME_CATALYST_MAX_QUESTIONS_PER_CALL to keep each call short.
Markdown enzyme compile is an explicit OpenRouter Decisions operation. It reuses the hosted lease from enzyme login and the free-config broker; an explicit OPENAI_API_KEY with OPENAI_BASE_URL=https://openrouter.ai/api/v1 takes precedence. Catalyst generation uses OPENAI_MODEL; Decisions uses ENZYME_JEV_MODEL (default typesafe/jev-1.13).
License
Enzyme is licensed under the Apache License 2.0.
Source: README.md at commit 961a863
Tools
0Version history
13- v0.13.2LatestOct 26, 2026
- v0.13.1Oct 24, 2026
- v0.13.0Oct 23, 2026
- v0.12.4Oct 19, 2026
- v0.12.3Oct 17, 2026
- v0.12.2Oct 7, 2026
- v0.12.1Oct 6, 2026
- v0.11.1Oct 1, 2026
- v0.11.0Sep 29, 2026
- v0.10.2Sep 21, 2026
- v0.10.1Sep 20, 2026
- v0.10.0Sep 20, 2026
- v0.9.2Sep 16, 2026
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