mcp-context-cost

aws-documentation — context cost

5,074 tokens across 5 tools — moderate (5–15K). Measured 2026-08-16 under methodology v1.0.

   
server (self-reported) awslabs.aws-documentation-mcp-server v1.29.0
status measured
tokenizer tiktoken / o200k_base
launch command uvx awslabs.aws-documentation-mcp-server@latest
isolation docker · ghcr.io/astral-sh/uv:python3.12-bookworm-slim · network bridge · network enabled for package fetch; clean FS, no host credentials
env vars supplied none
canonical SHA-256 03d94c1d9bbcaf8fcaf375d1d6f14b975f108724d76ebe3d70ea7ce72eed13ac
category vendor-official
source https://github.com/awslabs/mcp

Where the tokens are

tool tokens share description schema
search_documentation 1,956 38.5% 657 239
search_table 1,361 26.8% 658 172
read_sections 634 12.5% 467 75
read_documentation 571 11.3% 377 125
recommend 550 10.8% 354 41

Each tool is tokenized on its own, so the parts do not sum exactly to the whole: the array adds its own brackets and commas, and the tokenizer merges tokens across object boundaries. The badge number is always the count of the whole array, never a sum of parts.

Re-derive it

npx -y mcp-context-cost verify results/aws-documentation/measurement.json

That re-tokenizes the published capture and checks the count and the hash. If it disagrees with the badge, the badge is wrong — open an issue and it gets corrected.

Badge JSON · All servers · Leaderboard · Methodology