seren-corpus-callosum 1.2.1

Read-only N-store memory federation for Seren. The callosum - fans Loci, SerenMemory, and any number more into one RRF-merged recall surface.

Seren CorpusCallosum — VS Code extension

Gives GitHub Copilot (and you) one federated search across your whole Seren memory brain.

SerenCorpusCallosum is the callosum — a read-only fan that federates every Seren memory store into one ranked recall surface. This extension surfaces that fan to Copilot as a single language-model tool: ask once, and it reaches keyed facts (SerenLoci), episodic memory (SerenMemory), and any other stores you've wired in — then merges the hits into one list with Reciprocal Rank Fusion.

What it adds

One language-model tool — #serenSearch (seren_corpuscallosum_search):

Search the whole brain. Fans your query across every configured store and returns a single rank-fused list, each hit tagged with its origin store, its rank within that store, and its scores. Copilot reaches for this when answering something that might lean on a recorded convention, a hard-won fact, or past context — and it doesn't have to know which store the answer lives in.

It's deliberately the only tool. SCC owns no data, so there's nothing to set, get, or forget here — that's what the SerenLoci and SerenMemory extensions are for. Managing which stores get fanned (add/remove) lives in the Bridge viewer, behind the token, not as a model tool — you don't want Copilot wiring in stores mid-completion.

Commands (Ctrl+Shift+P):

Command	What it does
Seren CorpusCallosum: Set Bearer Token	Store the bearer token in the OS keychain (never in settings)
Seren CorpusCallosum: Check Service Health	Ping the service; updates the status-bar indicator
Seren CorpusCallosum: Open the Bridge (viewer)	Open the web UI to manage stores + search by hand
Seren CorpusCallosum: Start Service	Launch the service in a terminal if it's not reachable

A status-bar item ($(git-merge) CorpusCallosum) shows reachability at a glance.

Setup

1. Run the service. Install and start SerenCorpusCallosum (pip install seren-corpus-callosum, then seren-corpus-callosum). It defaults to http://localhost:7423.
2. Install this extension. It activates on startup and points at http://localhost:7423 by default — change serenCorpusCallosum.endpoint if yours runs elsewhere.
3. If your service has auth on, run Set Bearer Token. The token lives in the OS keychain (VS Code SecretStorage), is sent as Authorization: Bearer …, and is never written to settings or synced.

Settings

Setting	Default	Notes
serenCorpusCallosum.endpoint	http://localhost:7423	Base URL of the service
serenCorpusCallosum.startCommand	seren-corpus-callosum	Used by Start Service. Application-scoped so a workspace .vscode/settings.json can't hijack it
serenCorpusCallosum.suppressStartPrompt	false	Silence the "service not reachable — start it?" prompt

The bearer token is not a setting — it's in the OS keychain. Use the Set Bearer Token command.

The family

Service	Role	Extension tool(s)
SerenMemory	right brain — episodic memory	recall, …
SerenLoci	left brain — keyed facts	search_loci, set_fact, …
SerenCorpusCallosum	the fan over all of them	serenSearch — the whole brain

License

GPL-3.0-or-later.