feat(core): add /provider command for runtime provider switching#2150
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feat(core): add /provider command for runtime provider switching#2150
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- /provider lists all [[llm.providers]] entries with the active one marked - /provider <name> switches provider at runtime without restart (case-insensitive) - /provider status shows name, model, API calls, and cost - Addresses critic issues: extended_context flag reset (C1), ACP override cleared on explicit switch (C3), instruction files reloaded for new provider kind (C5), entry cloned before mutation to avoid borrow conflict (H1) - ProviderConfigSnapshot stores secrets as plain strings (Secret !Clone); re-wrapped in Secret inside build_provider_for_switch() - build_provider_for_switch() reconstructs minimal Config from snapshot to reuse existing build_provider_from_entry() path
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This was referenced Mar 23, 2026
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Closes #2140
Summary
/providerslash command with three sub-commands: list, switch, status/providerlists all[[llm.providers]]entries with active provider highlighted/provider <name>switches active provider at runtime (case-insensitive); resets cached tokens, compaction state, ACP override, and reloads instruction files/provider statusshows current provider name, model, API call count, and estimated cost/statusoutput updated to reflect provider after switchImplementation
New files:
crates/zeph-core/src/agent/provider_cmd.rs— command handler andbuild_provider_for_switch()crates/zeph-core/src/agent/provider_state.rs—ProviderStateholdingVec<ProviderEntry>snapshotsChanged files:
crates/zeph-core/src/agent/slash_commands.rs—SlashCommand::Providervariantcrates/zeph-core/src/agent/mod.rs— dispatch to provider command handlercrates/zeph-core/src/bootstrap/mod.rs— populateProviderStateat startupCritic issues addressed: C1 (extended_context reset), C3 (ACP override cleared), C5 (instruction files reloaded), H1 (borrow conflict avoided by cloning entry), H3 (partial — no placeholder model name), M2 (case-insensitive matching)
Test Plan
cargo +nightly fmt --check— cleancargo clippy --all-targets --all-features --workspace -- -D warnings— clean (pre-existing failures in router tests not introduced by this PR)cargo nextest run --workspace --all-features --lib --bins— 6417 passedFollow-up Issues
entry.modelisNone, fallback uses provider type string instead of provider default modelprovider_cmd.rshandlers using MockProvider/MockChannel