zeph-config

Pure-data configuration types for Zeph — all TOML config structs with serde derive, validation, and migration support.

Overview

Central repository for every typed configuration struct used across the Zeph workspace. Loading, parsing, and TOML migration live here; downstream crates pull the types they need without taking a dependency on the full agent stack. Configuration is sourced from a TOML file and can be overridden by ZEPH_* environment variables.

[!WARNING] v0.17.0 breaking change: [llm.cloud], [llm.openai], [llm.orchestrator], and [llm.router] are replaced by [[llm.providers]]. Run zeph migrate-config --in-place to upgrade automatically.

The minimal new format:

[llm]

[[llm.providers]]
type = "ollama"
model = "qwen3:8b"
embedding_model = "qwen3-embedding"

Key types

Type	TOML section	Description
`Config`	root	Top-level aggregate; resolved by `Config::load()`
`AgentConfig`	`[agent]`	Agent loop settings, instruction files, self-learning
`LlmConfig`	`[llm]` + `[[llm.providers]]`	Provider pool, routing strategy, summary provider
`MemoryConfig`	`[memory]`	SQLite pool, vector backend, compaction, graph memory
`SkillsConfig`	`[skills]`	Prompt mode, trust thresholds, hybrid search weights
`ToolsConfig`	`[tools]`	Shell executor, web scrape, audit logging, anomaly detection
`McpConfig`	`[mcp]`	MCP server list and transport settings
`OrchestrationConfig`	`[orchestration]`	DAG planner, aggregator, confirmation flow
`ComplexityRoutingConfig`	`[llm.complexity_routing]`	Per-tier provider pools for complexity triage routing
`SecurityConfig`	`[security]`	Content isolation, exfiltration guard, quarantine
`DebugConfig`	`[debug]`	Debug dump path and format
`LoggingConfig`	`[logging]`	Log file path, level, rotation, retention
`VaultConfig`	`[vault]`	Vault backend (`env`, `age`) and key path

Usage

use zeph_config::Config;

// Load config from the default path (~/.config/zeph/config.toml)
let config = Config::load(None)?;

println!("Provider: {}", config.llm.effective_provider());
println!("Max tool iterations: {}", config.agent.max_tool_iterations);

Custom path and environment overrides:

use std::path::Path;
use zeph_config::Config;

let config = Config::load(Some(Path::new("/etc/zeph/config.toml")))?;
// ZEPH_LLM_PROVIDER, ZEPH_LOG_LEVEL, etc. are applied automatically

Config migration (add missing sections from the canonical default):

zeph migrate-config            # print diff
zeph migrate-config --in-place # update file in place

Features

Feature	Description
`guardrail`	Enables `GuardrailConfig` under `[security.guardrail]`
`lsp-context`	Enables `LspConfig` under `[agent.lsp]` for LSP context injection hooks
`compression-guidelines`	Enables `CompressionGuidelinesConfig` under `[memory.compression]`
`experiments`	Enables `ExperimentConfig` and `ExperimentSchedule` under `[experiments]`
`policy-enforcer`	Enables `PolicyEnforcerConfig` under `[tools.policy]`

Environment variable overrides

All configuration fields can be overridden with ZEPH_-prefixed environment variables. Key examples:

Variable	Config field
`ZEPH_LLM_PROVIDER`	`llm.providers[0].type` (overrides first entry type)
`ZEPH_LOG_LEVEL`	`logging.level`
`ZEPH_LOG_FILE`	`logging.file`
`ZEPH_AUTO_UPDATE_CHECK`	`agent.auto_update_check`
`ZEPH_ACP_MAX_SESSIONS`	`acp.max_sessions`

Installation

cargo add zeph-config

Documentation

Full documentation: https://bug-ops.github.io/zeph/

License

MIT

zeph-config 0.18.0