# Universal Manifest

Universal Manifest (UM) is a packet-size-aware format for compact signed context handshakes: people, agents, devices, assets, places, facilities, and infrastructure can carry selected claims, proofs, pointers, policy, terms, and receipts so each encounter gets enough context to decide.

Stable published reference: v0.3
Current implementation target: v0.4 via https://universalmanifest.net/spec/latest/
Preview scope: preview-marked areas inside v0.4
Agent build on-ramp: https://universalmanifest.net/build/

Primary hosts:
- standards, docs, discovery, and tooling: https://universalmanifest.net
- runtime UMID resolver: https://myum.net

Public entry split:
- agent build on-ramp: https://universalmanifest.net/build/
- current spec alias: https://universalmanifest.net/spec/latest/
- stable spec reference: https://universalmanifest.net/spec/v0.3/
- landing page: https://universalmanifest.net/
- curated docs entry: https://universalmanifest.net/docs/

Canonical discovery order for agents:
1. https://universalmanifest.net/.well-known/universal-manifest.json
2. https://universalmanifest.net/build/
3. https://universalmanifest.net/build/versions.json
4. https://universalmanifest.net/spec/latest/
5. https://universalmanifest.net/spec/v0.3/
6. https://myum.net/.well-known/myum-resolver.json
7. https://myum.net/openapi.json

Canonical machine-readable artifacts:
- https://universalmanifest.net/build/versions.json
- https://universalmanifest.net/build/build-with-um.md
- https://universalmanifest.net/build/universal-manifest-skill.zip
- https://universalmanifest.net/build/rp1/README.md
- https://universalmanifest.net/build/rp1/versions.json
- https://universalmanifest.net/build/rp1/sources.json
- https://universalmanifest.net/build/rp1/universal-manifest-rp1-skill.zip
- https://universalmanifest.net/build/rp1/rp1-public-source-bundle.zip
- stable JSON-LD context: https://universalmanifest.net/ns/universal-manifest/v0.3/schema.jsonld
- stable JSON Schema: https://universalmanifest.net/ns/universal-manifest/v0.3/schema.json
- latest JSON-LD context alias, targeting stable v0.3: https://universalmanifest.net/ns/universal-manifest/latest/schema.jsonld
- latest JSON Schema alias, targeting stable v0.3: https://universalmanifest.net/ns/universal-manifest/latest/schema.json
- current JSON-LD context: https://universalmanifest.net/ns/universal-manifest/v0.4/schema.jsonld
- current JSON Schema: https://universalmanifest.net/ns/universal-manifest/v0.4/schema.json
- https://universalmanifest.net/agent/fixture-catalog.json
- https://universalmanifest.net/agent/sandbox-scenarios.json

Fixture and sandbox coverage:
- fixture and scenario item rows may reference older fixture versions because they describe currently mirrored public files
- use https://universalmanifest.net/build/ and https://universalmanifest.net/spec/latest/ for current v0.4 implementation guidance
- treat preview-marked areas inside v0.4 as preview, not stable

Public tool surfaces:
- https://universalmanifest.net/sandbox/
- https://universalmanifest.net/proof/harness/
- https://universalmanifest.net/workbench/
- https://universalmanifest.net/resolver/

Interaction model:
- universalmanifest.net is a read-mostly standards, discovery, build-kit, and tooling surface
- myum.net is a read-only resolver runtime
- these hosts do not currently expose a public A2A task lifecycle, public write API, or public MCP server
- the public agent skill zip is available from https://universalmanifest.net/build/universal-manifest-skill.zip

Key pages:
- https://universalmanifest.net/build/
- https://universalmanifest.net/use-cases/rp1-spatial-fabric/
- https://universalmanifest.net/build/rp1/README.md
- https://universalmanifest.net/spec/latest/
- https://universalmanifest.net/spec/v0.3/
- https://universalmanifest.net/about/one-pager/
- https://universalmanifest.net/about/why-um/
- https://universalmanifest.net/use-cases/
- https://universalmanifest.net/how-it-works/
- https://universalmanifest.net/standards/
- https://universalmanifest.net/roadmap/

Build / Agent Integration Kit (for agents and the developers driving them):
- guide + skill + PDF landing page: https://universalmanifest.net/build/
- comprehensive guide (Markdown): https://universalmanifest.net/build/build-with-um.md
- comprehensive guide (PDF): https://universalmanifest.net/build/build-with-um.pdf
- downloadable agent skill (zip): https://universalmanifest.net/build/universal-manifest-skill.zip
- kit version index (single source of version truth): https://universalmanifest.net/build/versions.json
- the kit is version-aware: it routes to the canonical spec/examples/conformance by version-resolved link and never duplicates them

RP1 / spatial-fabric build pack:
- use-case page: https://universalmanifest.net/use-cases/rp1-spatial-fabric/
- pack README: https://universalmanifest.net/build/rp1/README.md
- RP1 agent prompt: https://universalmanifest.net/build/rp1/agent-prompt.md
- RP1 skill zip: https://universalmanifest.net/build/rp1/universal-manifest-rp1-skill.zip
- RP1 public source bundle: https://universalmanifest.net/build/rp1/rp1-public-source-bundle.zip
- RP1 pack versions: https://universalmanifest.net/build/rp1/versions.json
- RP1 pack sources: https://universalmanifest.net/build/rp1/sources.json
- copy posture: equip your agent with this skill and source bundle to build with Universal Manifest plus RP1; this pack does not launch or manage a public agent task

Security:
- standards host security policy: https://universalmanifest.net/.well-known/security.txt
- runtime host security policy: https://myum.net/.well-known/security.txt
- contact: mailto:security@universalmanifest.net
