Atlas entry
book.
5 capabilities over MCP. The inventory is incomplete. First atlas observation.
5 tools. 4 only read. 1 changes records.◇
AI reading, beta. side-effects v1 on claude-haiku-5.5, calibrated on MCP (golden-3). Only readings above a measured precision count. Counts are tools, not calls: no tool was called.
AI readings summary · beta
The service lists 5 tools, and 5 have AI readings.
create_booking_link is read as creating records.
4 tools are read as read-only, including list_tours, get_tour and get_price.
get_tour: Returns one tour's prices, start times, add-on options, cancellation terms and contact info, found by its identifier.
Written by code from the AI readings on this page: it groups them and says nothing they do not.
What an agent can do here
AI readings, beta · Readings on 5 of 5 MCP tools.
Moves money
0
No tool read this way.
Deletes or cancels records
0
No tool read this way.
Sends messages to people
0
No tool read this way.
Changes permissions
0
No tool read this way.
Runs code
0
No tool read this way.
Should ask a person first
0
No tool read this way.
A zero is a count, not a clearance.
What changed
First atlas observation. Atlas history
Look first
AI reading, beta: AI adds items here; it never removes one.
No tool is read as one of the six effects. A zero is a count, not a clearance.
Surfaces
5 protocols checked
| ARD | unreachable | No document retrieved |
|---|---|---|
| A2A | unreachable | 0 skills |
| MCP | Valid | 2025-11-25 · 5 tools · resources not advertised · prompts not advertised |
| OpenAPI | Not detected | 0 operations |
| WebMCP | Not detected | 0 declarative form tools · experimental |
Exact states and meaning
- ARDfailed
Exact state: unreachable · No document retrieved
The supported discovery location did not provide a usable response within the observation boundary.
An unreachable result does not prove the service is unavailable to every client or that it advertises no capabilities.
Not observed / not fetched
- A2Afailed
Exact state: unreachable · 0 skills
The supported discovery location did not provide a usable response within the observation boundary.
An unreachable result does not prove the service is unavailable to every client or that it advertises no capabilities.
Not observed / not fetched
- MCPobserved
Exact state: valid · Revision 2025-11-25 · 5 tools · resources not advertised · prompts not advertised
A usable protocol document was retrieved and validated.
Directly observed
- OpenAPIabsent
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
- WebMCPabsent
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
Showing 5 of 5.
| Tool and inputs | ◇ AI reading, beta · confidence | ||||||
|---|---|---|---|---|---|---|---|
| Read as none of the six 5 Not a clearance. | |||||||
| Lists free start times for a tour on each day of a date range, up to 31 days per call, in Leiden local time.date_from, date_to, guests, tour* | Reads only0.88 | ||||||
| |||||||
| date*, guest, guests*, options and 2 more | Creates records0.80 | ||||||
| |||||||
| Returns the price for a tour on a given date for a group size, with optional extras and a VAT breakdown.date*, guests*, options, tour* | Reads only0.80 | ||||||
| |||||||
| Returns one tour's prices, start times, add-on options, cancellation terms and contact info, found by its identifier.tour* | Reads only0.92 | ||||||
| |||||||
| no inputs | Reads only0.86 | ||||||
| |||||||
Read as this effect No reading: unknown Not read as this effect◇ AI readings, beta. A zero is a count, not a clearance.
A2A skills 0+ observed
Inventory incomplete. The displayed count is a lower bound; missing items do not prove removal.
None recorded in this Passport.
MCP resources 0+ observed
Inventory incomplete. MCP resources could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.
None recorded in this Passport.
MCP prompts 0+ observed
Inventory incomplete. MCP prompts could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.
None recorded in this Passport.
OpenAPI operations 0+ observed
Inventory incomplete. OpenAPI operations could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.
None recorded in this Passport.
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.
The comparison with the previous observation is shown only to the account that recorded it.
Atlas history
1 observation
- 5 capabilities · MCP 2025-11-25 · MCP endpoint validFirst observation
Fingerprint and versions
- Fingerprint
60d349731de9a588b6f4b0a47ddddedd3ea6ee653babfcf8b3a9ad5671d567f6- 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.
Declared and observed
5 tools declare hints; the AI readings agree with all 5 that have a reading.
A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.
About this entry
nl.discovertours/discover-canal-cruisesListedOfficial MCP Registry · first listed 11 Nov 2026 · last listed 11 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
sha256:6583f7a488b32c0ed7a7d47316d877b68e9bfe8bc23314158fdbb3194b28e754- Locator SHA-256
d7fd65e204d6530b2ff0b8a2d3a2f6550dc778a7098ac95ae8a1b4636002277e- Snapshot generated
- 11 Nov 2026, 22:36 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.