- \n
- Step 3.7 - IQ4_XS<\/li>\n
- Qwen 3.5 122B-A10B - UD-Q4_K_XL<\/li>\n
- Qwen 3.6 27B - Q5_K_M<\/li>\n
- Qwen 3.6 35B-A3B - UD-Q6_K<\/li>\n<\/ul>\n
The benchmark is quite simple: I have my own coding harness developed in Go, I want to add a
\/config<\/code> command displaying the runtime value of all configuration fields, and from where the value came from (environment variable, configuration file or default value).<\/p>\nIn order to implement this, I first asked Step 3.7 to write a plan, here it is the plan it wrote for reference:<\/p>\n
# PLAN-config.md\n\n## \/config Command\n\nDisplay the effective configuration from inside the TUI so the user can inspect model, endpoint, context limits, and other active settings without quitting.\n\n## Changes\n\n### `internal\/app\/app.go`\n\n1. **Add `case "config":` in `handleCommand` (line ~809)**\n\n Parse a `show` subcommand. Default to `show` when no subcommand is given.\n\n ```go\n case "config":\n sub := "show"\n if len(parts) > 1 {\n sub = parts[1]\n }\n switch sub {\n case "show":\n return m.handleConfigShow(), true\n default:\n msg := types.NewSystemMessage("Usage: \/config [show]")\n m.Messages = append(m.Messages, msg)\n m.Screen.GetMessageView().MessageGrew()\n return nil, true\n }\n ```\n\n2. **Add `handleConfigShow` method**\n\n Format key config values as a readable message. Mask the bearer token (show only last 4 chars or `***`). Indicate the source if it differs from the default (e.g. `[env]`, `[yaml]`, `[cli]`) \u2014 the config loader already knows the origin, so expose that via the `Config` struct or a separate `source` field.\n\n Fields to display:\n\n | Field | Notes |\n |---|---|\n | `Model` | always shown |\n | `Endpoint` | always shown |\n | `BearerToken` | masked \u2014 last 4 chars only |\n | `CWD` | working directory |\n | `MaxContextTokens` | context window size |\n | `CompactionThreshold` | e.g. `0.8` |\n | `KeepRecentTokens` | preserved after compaction |\n | `MaxTokens` | response token limit |\n | `SystemPrompt` | show length + first 80 chars, not the full text |\n | `Debug` | on\/off |\n | `UILogPath` | log file location |\n | `EnableMultiline` | on\/off |\n | `EnableAutocomplete` | on\/off |\n | `AutocompleteMaxItems` | max suggestions |\n | `TabCompletes` | on\/off |\n\n3. **Update help text (line ~841)**\n\n Add:\n\n ```\n helpText += " \/config - Show effective configuration\\n"\n ```\n\n### `internal\/app\/config_types.go`\n\n4. **Add `Source` field to `Config`**\n\n Track where each value came from (default, yaml, env, cli) so `\/config show` can display it. Add a `source` map or per-field tags:\n\n ```go\n type ConfigSource string\n\n const (\n SourceDefault ConfigSource = "default"\n SourceYAML ConfigSource = "yaml"\n SourceEnv ConfigSource = "env"\n SourceCLI ConfigSource = "cli"\n )\n ```\n\n Either embed a `map[string]ConfigSource` in `Config` or add a `GetSource(key string) ConfigSource` method. Keep it minimal \u2014 only needed for display.\n\n### `internal\/app\/config.go`\n\n5. **Populate source tracking in `LoadConfig` \/ `ApplyFlags`**\n\n When a value is overridden, record the source. The loader already has the precedence chain (yaml \u2192 env \u2192 cli), so this is a straightforward addition alongside the existing assignment logic.\n\n## Notes\n\n- Bearer token masking: show `...xxxx` or empty string if not set. Never print the full token.\n- System prompt: only show length and a truncated preview to avoid flooding the message view.\n- Source display is additive \u2014 a `[env]` or `[cli]` tag next to the value makes it easy to understand why a non-default value is active.\n- Keep it read-only. No config mutation from `\/config` for now (that's a future stretch).\n<\/code><\/pre>\nThe first observation I can make is that the Step 3.7 prose is really different from Qwen’s prose. Not that it is any better or worse, but it is a bit different and I like it.<\/p>\n
![\"My](\"https:\/\/remy.io\/img\/articles\/llm-infra\/llm-infra.webp\")
<\/p>\n![\"Setup](\"https:\/\/remy.io\/img\/articles\/llm-infra\/basement_setup.webp\")
<\/p>\n