Atlas entry

`digitalgemology.com`

12 capabilities over A2A and MCP. The inventory is incomplete. First atlas observation.

Observed 2 Nov 2026, 23:00 UTC · passive: no tools called, no credentials sent · sha256:ff252a…7725

Capability facts

As observed from outside, at the time below

Observed: 2 Nov 2026, 23:00 UTC
Signed: 3 Nov 2026, 21:26 UTC

Protocols: A2A, MCP
Tools: 12
Declared sign-in: None declared

Effects counted AI readings, beta

Moves money: 0
Deletes or cancels records: 0
Sends messages to people: 0
Changes permissions: 0
Runs code: 0
Asks a person: 0

4 tools examined; 0 counted above a measured threshold.

Declared vs read disagreements

Declared read-only, read as writing: 0
Declared destructive, read as not writing: 0
Declared non-destructive, read as deleting: 0
Declared closed-world, read as reaching out: 0

Change since previous: First observation
Label status: Current

Surfaces

5 protocols checked

ARD	Not found	No document retrieved
A2A	Valid	8 skills
MCP	Valid	2026-07-28 · 4 tools · resources not advertised · prompts not advertised
OpenAPI	Not detected	0 operations
WebMCP	Not detected	0 declarative form tools · experimental

Exact states and meaning

ARD
absent
Exact state: not found · No document retrieved
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
A2A
observed
Exact state: valid · 8 skills
A usable protocol document was retrieved and validated.
Directly observed
MCP
observed
Exact state: valid · Revision 2026-07-28 · 4 tools · resources not advertised · prompts not advertised
A usable protocol document was retrieved and validated.
Directly observed
OpenAPI
absent
Exact state: not detected · 0 operations
No endpoint was established from the evidence and scope that InterfaceDelta inspected.
Not detected does not prove that no endpoint exists.
Not observed / not fetched
WebMCP
absent
Exact state: not detected · 0 declarative form tools · experimental
No named declarative WebMCP form tools were observed in the origin root HTML.
Script-registered tools and other pages are not observed, so this does not mean the site has no WebMCP tools.
Not observed / not fetched

Capabilities

12 · inventory incomplete

The atlas shows each capability by its plain identifier, inputs and declared sign-in. Publisher descriptions, paths, links and source evidence are not published here.

A2A skills 8

best_cuts_for_gemstone
compare_cuts
cut_in_gemstone
get_cut
get_cut_scores
list_gemstones
recommend_cut
search_cuts

MCP tools 4

explain_term
inputs term (required)
get_lesson
inputs lesson (required)
list_courses
search_lessons
inputs limit, query (required)

Not observed in this Passport: MCP resources, MCP prompts, OpenAPI operations.

Declared and observed

4 tools declare hints; the AI readings agree with all 0 that have a reading.

A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.

Atlas history

1 observation

2 Nov 2026, 23:00 UTC12 capabilities · A2A and MCP 2026-07-28 · MCP endpoint validFirst observation
Fingerprint and versions
Fingerprint
ff252a3353ec3d75ebc8b99d5905ef17f577dc2b83b566118e8673c2515c7725
Passport schema
0.5.0, passport-semantic-v4
Consistency
MCP_PROMPTS_ADVERTISEMENT_LIST: not applicable · MCP_RESOURCES_ADVERTISEMENT_LIST: not applicable · MCP_TOOLS_ADVERTISEMENT_LIST: match · OPENAPI_MCP_EXPLICIT_MAPPING: not applicable

Each class compares an observation with the previous atlas observation. Runs of unchanged observations are grouped. Struck values are what the previous observation recorded; inserted values are what this one recorded.

About this entry

com.digitalgemology/gemology-lessons
Listed
Official MCP Registry · first listed 2 Nov 2026 · last listed 2 Nov 2026

Passive observations of a public interface listed in the Official MCP Registry. An observation does not verify security, ownership or compliance, and InterfaceDelta assigns no scores or rankings. Methodology · Report an inaccuracy · Ask for removal

Identity and snapshot

Target key: sha256:f484907c3e928d38b97bffd2d3631debf2b02616ac61e0b63e27b83ca4059c27
Locator SHA-256: b6edf230871f6ff7a3bbf0def4f16ca9b33e5fc65b6caaab2ae611ccefc0bba9
Snapshot generated: 4 Nov 2026, 00:59 UTC

The entry is one exact observed target, not a real-world service identity, and implies no ownership. Endpoint paths are not published; the locator hash lets an operator confirm their own URL.