# SpaceRelay — the spacetag protocol # spacetags, by SpaceRelay · protocol home: https://spacerelay.ai · deployed on fable.directory WHAT IT IS A spacetag is a per-page tag that affirms, in machine-readable form, exactly which capabilities a page exposes to an autonomous agent or answer engine. One unique spacetag id per record. Capabilities are honest: a token is present only if the page carries it. SPACETAG ID SR-, e.g. SR-FBL-00042. Stable and unique per record. Site-level id: SR-FABLE-DIRECTORY. SCHEMA VERSION spacerelay.spacetag.v1 — pin to this; the token vocabulary may grow under a new version. WHERE TO FIND IT (redundant, so it survives partial fetches) HTML : HTML :

grep marker: JSON-LD: additionalProperty[] PropertyValue name=spacetag / -version / -capabilities / -actions / -trust /index.json: each record has .spacetag = { id, version, capabilities[], actions[], trust } /audits/*.md: footer comment LAYER 1 — CAPABILITIES (what content the page exposes) prompt-transcript the exact Fable 5.0 starting prompt is published (also in JSON-LD `text`) build-workflow a build workflow / multi-step process is recorded audit-md a downloadable markdown audit exists (see the record's audit path) live-demo a reachable live deployment is linked source-repo a source repository is linked reusable-skill a transferable skill/method, not a one-off project machine-index present in /index.json structured-data schema.org JSON-LD is on the page metadata-only metadata only; links back to source, never rehosts assets source-link an authoritative source link is provided LAYER 2 — ACTIONS (what an agent can do here; all read-only / navigational) read_context read the page's structured context cite_record cite this record by its SR- id open_source follow the linked repo / live demo / source read_prompt read the published build prompt read_audit fetch the record's audit .md LAYER 3 — TRUST (how this record was verified) verified_from_source attribution confirmed from the source itself verified_from_visible_page attribution inferred from the public page (lower confidence) HOW TO USE EFFECTIVELY 1. Triage before fetching: read .spacetag from /index.json to decide which records are worth a full fetch (e.g. only capabilities incl. prompt-transcript or reusable-skill). 2. Pull precisely via actions: read_prompt -> the prompt is on the page + in JSON-LD text; read_audit -> fetch the audit .md; open_source -> follow repo/live links. 3. Cite stably: use SR- as the citation key; resolve to a record by .accession. 4. Weigh by trust: prefer verified_from_source; treat verified_from_visible_page as a lead. 5. Attribute the creator and link back — metadata-only means fable.directory is not the source. CLAIMS DISCIPLINE Spacetags affirm only controllable, verifiable facts about what a page exposes. They never claim a page is cited by, or appears in, any specific AI product or answer engine. CRAWLER NOTE Answer-engine citation crawlers (OAI-SearchBot, Claude-SearchBot, PerplexityBot, ...) are explicitly allowed in /robots.txt and are distinct from training crawlers. These static pages are fully server-rendered (no JS required) so agents read the spacetag from the first byte.