Implemented lazy container activation for devcontainer-instance resources with ContainerLifecycleState enum tracking six states (inactive, starting, active, stopping, stopped, error) with validated transitions. Extended DevcontainerHandler with devcontainer up CLI integration and JSON output parsing for container start. Added periodic health checking via devcontainer exec ping with configurable interval. Added agents resource stop and agents resource rebuild CLI commands for manual lifecycle control. Wired session close and plan completion hooks to automatic container cleanup. Includes lifecycle state persistence in resource registry with timestamped transitions. Added Behave BDD tests, Robot integration tests, and ASV activation latency benchmarks. - Added remoteWorkspaceFolder absolute-path validation - Aligned spec: handler name, rebuild types, --yes flag on stop/rebuild - Added registry re-read in stop_container success path for consistency - Added session_id field to ContainerLifecycleTracker for scoped cleanup - Scoped stop_all_active_containers to session_id when provided - Wired _cleanup_devcontainers into fail_apply and fail_execute - Wired start_health_check into activate_container success path - Restructured facade session close to always run container cleanup even without session service (F4) - Re-read tracker from registry in activate_container success path - Added evict_terminal_trackers to cap registry growth - Updated devcontainer_resources.md: health check auto-start, scoped cleanup hooks, known limitations for eviction and sandbox_strategy - Wired evict_terminal_trackers into stop_all_active_containers so terminal-state trackers are actually evicted in production - Made stop_container idempotent: returns early when container is already in a terminal state instead of raising ValueError - Fixed benchmark health check thread leak in TimeActivationLatency by clearing registry after each timing loop - Added rebuild pass-through (--reset-container flag to devcontainer up) - Added host_workspace_path field on ContainerLifecycleTracker so health probes use the host-side path for devcontainer exec - Wired lazy activation into DevcontainerHandler.resolve() for devcontainer-instance resources in non-running states - Changed _default_strategy from SNAPSHOT to NONE (container itself provides isolation; SandboxFactory raises NotImplementedError for snapshot) - Restricted _STOPPABLE_TYPES to devcontainer-instance only (container-instance is not directly stoppable via CLI) ISSUES CLOSED: #514
CleverAgents Core
CleverAgents is a Python-first automation platform. It provides a unified agents CLI, embedded runtime, and service orchestration tools while embracing modern Python tooling.
Highlights
- Unified CLI entry points:
cleveragentsandagents - Fast Typer/Click-based interface with parity for help/version behavior
- Behavior-driven coverage via Behave and Robot Framework
- Nox automation for linting, typing, testing, docs, builds, and benchmarks
- MkDocs-powered documentation with CleverAgents branding
Quick Start
# clone the CleverAgents core repository
git clone https://git.cleverthis.com/cleveragents/core.git
cd core
# install dependencies
python -m venv .venv
source .venv/bin/activate
pip install -e ".[dev,tests,docs]"
# set up pre-commit hooks and verify tooling
bash scripts/setup-dev.sh
# verify the CLI
agents --help
agents --version
Developing
Pre-commit hooks run automatically on every git commit (formatting, linting, type
checking, security scanning). To run checks manually:
# core validation
nox -s format # ruff auto-formatting
nox -s lint # ruff linting
nox -s typecheck # pyright type checking
nox -s unit_tests # behave unit tests
nox -s integration_tests # robot integration tests
# quality & security
nox -s security_scan # bandit security scanning
nox -s dead_code # vulture dead code detection
nox -s complexity # radon complexity analysis
nox -s pre_commit # run all pre-commit hooks
nox -s adr_compliance # verify ADR compliance
For the full quality automation guide, see docs/development/quality-automation.md.
Documentation
nox -s docs
nox -s serve_docs
Tests
Behave feature scenarios live under features/ and Robot suites under robot/. Use the Nox sessions above to execute them in parity with the implementation plan.
Observability
LangSmith tracing is optional and off by default. Enable it by exporting CLEVERAGENTS_LANGSMITH_ENABLED=true along with a project name and API key (CLEVERAGENTS_LANGSMITH_PROJECT, CLEVERAGENTS_LANGSMITH_API_KEY). The settings module automatically mirrors these values to LANGCHAIN_TRACING_V2, LANGCHAIN_PROJECT, and LANGCHAIN_API_KEY, so LangChain/LangGraph agents emit traces without extra wiring. Additional knobs such as CLEVERAGENTS_LANGSMITH_ENDPOINT, CLEVERAGENTS_LANGSMITH_USER_ID, and CLEVERAGENTS_LANGSMITH_TAGS are documented in docs/observability.md.
LLM provider configuration
CleverAgents ships with a LangChain/LangGraph powered provider registry that discovers whichever API keys you export and automatically selects the best available provider. The CLI now uses actors: select an actor with --actor <name> (or set a default via agents actor set-default). Actors embed provider/model choices; built-in actors are seeded from CLEVERAGENTS_DEFAULT_PROVIDER / CLEVERAGENTS_DEFAULT_MODEL, then fall back to the built-in order (openai → anthropic → google → azure → openrouter → groq → together → cohere → gemini).
Required environment variables
| Provider | Primary variables |
|---|---|
| OpenAI | OPENAI_API_KEY |
| Anthropic | ANTHROPIC_API_KEY |
GOOGLE_API_KEY or GOOGLE_GENAI_API_KEY |
|
| Azure OpenAI | AZURE_OPENAI_API_KEY plus AZURE_OPENAI_ENDPOINT/AZURE_OPENAI_DEPLOYMENT |
| OpenRouter | OPENROUTER_API_KEY (+ optional CLEVERAGENTS_OPENROUTER_ORGANIZATION for sanitized headers) |
| Gemini | GEMINI_API_KEY or GOOGLE_GEMINI_API_KEY |
| Cohere | COHERE_API_KEY |
| Groq | GROQ_API_KEY |
| Together | TOGETHER_API_KEY |
Set CLEVERAGENTS_DEFAULT_PROVIDER to pin the global provider (for example export CLEVERAGENTS_DEFAULT_PROVIDER=openai) and CLEVERAGENTS_DEFAULT_MODEL to lock in a model ID. When unset, the registry picks the first configured provider and uses its published default model such as gpt-4o for OpenAI or claude-sonnet-4-20250514 for Anthropic.
Diagnostics and testing shortcuts
agents diagnosticsprints whether the registry can see your credentials and which actor/provider is selected.agents tellandagents buildrequire--actor <name>unless a default actor is set; useagents actor set-default <name>to configure one.- Built-in actors (
<provider>/<model>) are immutable, custom actors must be namedlocal/<id>, and the default actor cannot be removed. Use--unsafewhen adding/updating configs marked unsafe; runtime only warns when invoking unsafe actors. CLEVERAGENTS_TESTING_USE_MOCK_AI=trueforces the in-repo mock provider so Behave/Robot suites never hit external APIs.- The full capability matrix (streaming, tool calls, JSON mode, etc.) is documented in
docs/reference/providers.md.