harness_engineering
A synthesis of OpenAI's harness engineering report, Anthropic's long-running agent research, Anthropic's prompting best practices docs, and lessons from workos/case (a production harness orchestrating AI agent work across multiple repositories).
Core thesis: the bottleneck in agent performance is environment design, not model intelligence. Or as OpenAI put it: "The horse is fast. The harness is everything."
Check out the YouTube link for additional help: https://youtu.be/MoZtlB06yys
If the page stops refreshing (because it found an appointment), but you don't like the time or location, just type:
| #!/usr/bin/env ruby | |
| require 'nokogiri' | |
| require 'open-uri' | |
| model = 'MacBook_Pro_16' | |
| url = "https://buyersguide.macrumors.com/\##{model}" | |
| doc = Nokogiri::HTML(URI.open(url)) |
| package main | |
| import ( | |
| "encoding/json" | |
| "io" | |
| "log" | |
| "net/http" | |
| "os" | |
| "github.com/go-redis/redis" |
| { | |
| # get a list of files off the tree entries | |
| repository(owner: "gjtorikian", name: "html-proofer") { | |
| ref(qualifiedName: "refs/heads/master") { | |
| target { | |
| ... on Commit { | |
| tree { | |
| entries { | |
| object { | |
| __typename |
| require 'pty' | |
| def run_cmd(cmd) | |
| begin | |
| PTY.spawn( cmd ) do |stdout, stdin, pid| | |
| begin | |
| # Do stuff with the output here. Just printing to show it works | |
| stdout.each { |line| print line } | |
| rescue Errno::EIO | |
| puts "Errno:EIO error, but this probably just means " + |
| { | |
| repository(owner: "facebook", name: "mention-bot") { | |
| object(expression: "master") { | |
| ... on Commit { | |
| blame(path: "cookieJar.js") { | |
| ranges { | |
| startingLine | |
| endingLine | |
| age | |
| commit { |
| namespace :api do | |
| # Sample output is a header (listing the class name) followed by | |
| # the verb + endpoint. For example: | |
| # | |
| # ### Within Api::Git | |
| # | |
| # GET /repositories/:repository_id/git | |
| desc "List all the API endpoints with their verbs." | |
| task :routes => :environment do |
| diff --git a/lib/sinatra/base.rb b/lib/sinatra/base.rb | |
| index 3b07ab0..b76ef47 100644 | |
| --- a/lib/sinatra/base.rb | |
| +++ b/lib/sinatra/base.rb | |
| @@ -2,6 +2,7 @@ | |
| require 'rack' | |
| require 'tilt' | |
| require 'rack/protection' | |
| +require 'forwardable' | |
| Dir.glob('content/**/*.md') do |file| | |
| content = File.read(file) | |
| content = content.gsub(/{:.terminal}\n[\s\S]*?^$/) do |match| | |
| lines = match.lines | |
| lines = lines[1..-1].map do |line| | |
| line[4..-1] | |
| end | |
| lines.unshift("``` command-line\n") | |
| lines << "```\n" |
