loki/docs/implementation/PHASE-1-STEP-10-NOTES.md

Phase 1 Step 10 — Implementation Notes

Status

Done. Client chain migrated. GlobalConfig reduced to runtime-only usage (tool evaluation chain + REPL sync).

Summary

Migrated the entire client chain away from GlobalConfig:

• Client trait: global_config() → app_config()
• Client structs: GlobalConfig → Arc<AppConfig>
• init_client: &GlobalConfig → &Arc<AppConfig>
• Input struct: removed config: GlobalConfig field entirely
• Rag: deleted build_temp_global_config bridge
• render_stream: &GlobalConfig → &AppConfig
• Config::search_rag: &GlobalConfig → &AppConfig
• call_chat_completions*: explicit runtime: &GlobalConfig parameter

What was changed

Files modified (10 files)

• src/client/macros.rs — client structs hold Arc<AppConfig>, init takes &Arc<AppConfig>, init_client takes &Arc<AppConfig> + Model. Zero GlobalConfig in file.

• src/client/common.rs — Client trait: app_config() -> &AppConfig. call_chat_completions* take explicit runtime: &GlobalConfig.

• src/config/input.rs — removed config: GlobalConfig field. Added rag: Option<Arc<Rag>> captured at construction. Changed set_regenerate to take current_role: Role parameter. Zero self.config references.

• src/config/mod.rs — search_rag takes &AppConfig. Deleted dead rag_template method.

• src/render/mod.rs — render_stream takes &AppConfig. Zero GlobalConfig in file.

• src/rag/mod.rs — deleted build_temp_global_config. Creates clients via init_client(&self.app_config, model). Zero GlobalConfig in file.

• src/main.rs — updated call_chat_completions* calls with explicit runtime parameter.

• src/repl/mod.rs — updated call_chat_completions* calls, set_regenerate call with current_role parameter.

• src/function/supervisor.rs — updated call_chat_completions call in run_child_agent.

• src/config/app_config.rs — no changes (already had all needed fields).

Remaining GlobalConfig usage (71 references)

Category	Files	Count	Why
Definition	config/mod.rs	13	Config struct, GlobalConfig alias, methods called by REPL
Tool eval chain	function/mod.rs	8	eval_tool_calls(&GlobalConfig), ToolCall::eval(&GlobalConfig)
Tool handlers	function/supervisor.rs	17	All handler signatures
Tool handlers	function/todo.rs	2	Todo handler signatures
Tool handlers	function/user_interaction.rs	3	User interaction handler signatures
Runtime param	client/common.rs	3	call_chat_completions*(runtime: &GlobalConfig)
Input construction	config/input.rs	4	Constructor params + capture_input_config
REPL	repl/mod.rs	10	Input construction, ask, sync helpers
REPL components	repl/completer.rs	3	Holds GlobalConfig for reedline
REPL components	repl/prompt.rs	3	Holds GlobalConfig for reedline
REPL components	repl/highlighter.rs	2	Holds GlobalConfig for reedline
Bridge	config/request_context.rs	1	to_global_config()
Bridge	config/macros.rs	2	macro_execute takes &GlobalConfig

The remaining GlobalConfig usage falls into 3 categories:

1. Tool evaluation chain (30 refs) — eval_tool_calls and handlers read runtime state from GlobalConfig
2. REPL (18 refs) — sync helpers, Input construction, reedline
3. Definition (13 refs) — the Config struct itself

Phase 1 final completion summary

Phase 1 is now complete. Every module that CAN be migrated HAS been migrated. The remaining GlobalConfig usage is the tool evaluation chain (which reads runtime state during active tool calls) and the REPL sync layer (which bridges RequestContext to GlobalConfig for the tool chain).

Key achievements

• Input no longer holds GlobalConfig
• Client structs no longer hold GlobalConfig
• Rag has zero GlobalConfig references
• render_stream takes &AppConfig
• Agent::init takes &AppConfig + &AppState
• Both entry points thread RequestContext
• 64+ methods on RequestContext, 21+ on AppConfig
• Zero regressions: 63 tests, zero warnings, zero clippy issues

What Phase 2 starts with

Phase 2 can build REST API endpoints using AppState + RequestContext directly. The tool evaluation chain will need to be migrated from &GlobalConfig to &mut RequestContext when REST API tool calls are implemented — at that point, Config and GlobalConfig can be fully deleted.

Verification

• cargo check — zero warnings, zero errors
• cargo clippy — zero warnings
• cargo test — 63 passed, 0 failed