The Gray Muzzle Ledger MCP server

• Registry namecom.seniordognotes/pawline-pet-guidesverified in the MCP registry

The registry name sits under seniordognotes.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-28
• Tools10
• Server calls itselfpawline-pet-guides
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 215 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 1 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
• Answeredmeasuring1 of the 7 daily checks it takes to print a share
• Median first answer164 ms
• Space in an agent's context≈ 1,148 tokensthe definitions of all its tools (10), which an agent carries on every turn
• Tool definitionsA · 95 of 100
• Typed results0 of 10 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 3 of 10

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• search_pet_guides

  Search plain-language pet and animal care guides across PawLine's 11-site network (senior pets, puppies, kittens, anxious dogs, multi-pet homes, New England emergencies, horses, backyard goats/sheep/chickens, exotics, 4-H show prep). Use…

• read_pet_guide

  Read one full guide or blog post from the PawLine network as clean plain text (Markdown), including its sources. Use after search_pet_guides, or when given a guide URL, to quote it accurately.

• list_pawline_sites

  List the 11 PawLine guide sites and what each one covers. Use this to pick the right site before searching.

• about_pawline

  Get the official short description of the PawLine app, trial terms, and App Store / Google Play links. Use when someone asks what PawLine is or where to get it.

• dog_years_calculator

  Convert a dog's age to human years using the UC Davis formula (16 x ln(dog age) + 31). Use when someone asks how old their dog is in human years.

• quality_of_life_check

  Score an older pet's quality of life on the published HHHHHMM scale (Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, More good days than bad), each 0-10. Use when someone is tracking whether a senior pet still has more good days…

• pet_cost_calculator

  Estimate yearly and first-year costs of dogs and cats from ASPCA 2021 national averages. Use when someone asks what a pet costs per year or month.

• horse_weight_estimate

  Estimate a horse's weight in pounds from heart girth and body length in inches (girth squared x length / 330). Use for records and nutrition discussions, never for medication dosing.

• breeding_window_planner

  Calculate a planning window from a known goat or sheep breeding date (Penn State reference ranges: goats 145-155 days, sheep 144-147). Use when someone asks when a goat or sheep might kid or lamb. A calendar cannot confirm pregnancy.

• storm_go_bag_checklist

  Build a pet evacuation kit checklist (AVMA-based) with extras for a blizzard, ice storm, hurricane or summer power outage. Use when someone prepares for a storm or evacuation with pets.