Recurgent Ruby Runtime

This directory contains the canonical Ruby implementation of Recurgent.

Commands

bundle install
bundle exec rspec
bundle exec rubocop
bundle exec rake
./bin/recurgent
ruby examples/calculator.rb
ruby examples/debate.rb

Structure

lib/       # Agent runtime + providers + outcome model
spec/      # unit + acceptance tests
examples/  # executable demos
bin/       # executable entrypoint

Dynamic Call Contract

Dynamic method calls return Agent::Outcome:

ok? + value for successful calls
error? + typed error_type/error_message for failures

Runtime Configuration

Configure runtime dependency policy before creating Tool Builders:

Agent.configure_runtime(
  gem_sources: ["https://rubygems.org"],
  source_mode: "public_only",
  allowed_gems: nil,
  blocked_gems: nil
)

To force internal source only:

Agent.configure_runtime(
  gem_sources: ["https://artifactory.example.org/api/gems/ruby"],
  source_mode: "internal_only",
  allowed_gems: %w[nokogiri prawn]
)

Async Preparation

Warm up dependency environments before first call:

ticket = Agent.prepare(
  "pdf tool",
  dependencies: [{ name: "prawn", version: "~> 2.5" }]
)

result = ticket.await(timeout: 30)

result is:

Agent when preparation succeeds
Agent::Outcome when preparation fails (error_type: "environment_preparing")

Dependency Environment Invariants

Environment cache identity includes Ruby version/platform, normalized dependency manifest, source_mode, and normalized gem_sources.
Worker-vs-inline execution follows the tool's effective manifest: once a tool has a non-empty manifest, later calls with dependencies: [] still execute in the worker-backed environment.
Dependency manifests are monotonic per tool instance: existing gems/versions must remain identical, while new gems may be added.

Contract Parity

Shared cross-runtime contract artifacts live at:

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