Agent · Nous Research · framework

Hermes

github.com/NousResearch/hermes-agent

21
tools registered
6/6
compared capabilities
it has a tool for
1
of those tools
read from source

Hermes registers 21 tools, covering 6 of 6 compared capabilities.

Surface size

tools registered, across the 13 harnesses here

Surface size, not quality. Every registered tool spends context on every request, so a longer bar is a cost as much as a capability — and a harness that reaches a capability through a general tool may register fewer.

Capabilities

what serves each, and where it is compared

Where its tools differ from the rest

  • read_file · Staleness check before writeinvariantholdsvs fails in 6 of 8
  • read_file · Byte / char cap100k chars (not lines)vs 50 KB in 3 of 5
  • read_file · Whichever hits firstcharsvs lines or bytes in 4 of 5
  • read_file · Giant single linechar budget absorbs itvs per-line cap in 4 of 6

Derived by comparing every recorded value against the other implementations of the same capability. Differing is not a defect unless the row is marked an invariant.

All 21 tools

names verbatim, as registered

Not yet compared means registered by Hermes but with no comparison page here — todo lists, subagent spawning, approval flows. They become capabilities the day there is a comparison worth reading, and the data does not have to change for that to happen.