# lore > breadcrumbs an agent leaves while working with you, kept as records in an > AT Protocol space on your PDS. one space per project, shared by handle. > a pi extension writes and reads them; this site lists your spaces. ## use - install: `pi install https://tangled.org/zzstoatzz.io/pi-extensions`, then `/lore login ` (OAuth in the browser, once per account; sessions persist and refresh) - `/lore` — this project's space: owner, members, latest breadcrumbs, link; `/lore all` every breadcrumb, `/lore mine` only yours - `/lore note ` — saves your text exactly - `/lore use ` — use a space you name for this project instead of the one keyed to its git remote - `/lore share ` / `/lore unshare ` / `/lore members` - `/lore join ` — use a space shared with you, from any project; `/lore leave` stops - `/lore as [handle]` — switch account (no handle: picker); any command takes a trailing `as `; `/lore login [handle]`, `/lore logout [handle]` (revokes); `/lore help` - the agent's own breadcrumbs have no command: the user asks in plain words to remember something, the agent drafts one with its link, the user confirms before it is written ## on the network - space type `tech.waow.lore.space`; skey = sha256 of the key (a slug, or a git remote reduced to its tangled repo DID) - `tech.waow.lore.entry` under each writer's repo in the space: `text`, `createdAt`; refinements rewrite in place - `tech.waow.lore.registry` in a private space of one's own (key `lore-registry`): project → space; nothing public - permission set `tech.waow.lore.permissions`; lexicons resolve from `_lexicon.lore.waow.tech` - OAuth clients: web `https://lore.waow.tech/oauth-client-metadata.json`, native (pi) `https://lore.waow.tech/pi/oauth-client-metadata.json` - requires a PDS that implements the spaces alpha; the token's `space:` grants are the capability check ## links - site: https://lore.waow.tech - source and design notes: https://tangled.org/zzstoatzz.io/pi-extensions (extensions/lore/README.md) - spaces alpha: https://atproto.com/blog/atproto-spaces-alpha