c35564a Merge pull request #47 from bnema/feat/fast-mode-command · zut

M README.md +3 -2


@@ -278,6 +278,7 @@ Slash command names are case-insensitive in the TUI and messaging backends; argu
278	278		\| `/logout [provider]` \| Clear credentials for any logged-in provider, or all when omitted. `/logout openai-codex` clears ChatGPT/Codex subscription auth while preserving a public OpenAI API key; `/logout kimi` also disables fallback to the official Kimi Code CLI token until you log in to Kimi through zut again. \|
279	279		\| `/model` \| Pick a model from a list (or `/model <id>` to set directly). \|
280	280		\| `/reasoning` \| Set the reasoning level for subsequent model calls. \|
	281	+	\| `/fast` \| Toggle fast mode for subsequent model calls. \|
281	282		\| `/llama` \| Connect to the configured llama.cpp router, load, unload, or remove cached models, and search/download GGUF models from Hugging Face with live progress. Shown after llama.cpp login is configured. \|
282	283		\| `/sessions` \| Resume a previous session for this directory. The picker omits branches created only for tree navigation. \|
283	284		\| `/fork` \| Pick a previous user message and fork the current session after that turn. The selected turn becomes branch context and no provider turn starts during the checkout. \|

@@ -292,7 +293,7 @@ Slash command names are case-insensitive in the TUI and messaging backends; argu
292	293		\| `/unjail` \| Allow tools to touch paths outside again. \|
293	294		\| `/reload-ext` \| Hot-reload all extensions (re-read manifests, respawn subprocesses, rebuild tool registry). \|
294	295		\| `/telegram` \| Connect, disconnect, or show status of the Telegram bridge (takes `connect` / `disconnect` / `status` as an optional argument; opens a picker without one). When connected, DMs from the paired user become prompts in the running session and the assistant's replies are mirrored back to Telegram. Alias: `/tg`. \|
295		-	\| `/settings` \| Change persistent settings, including inline images, terminal alerts, AI terminal titles, auto-subagents, Ponytail coding mode, fast mode, main/sub-agent LSP access, and the auto-compact threshold. Saved to `$ZUT_HOME/config.json`; setting changes apply without a restart, while AI title generation waits for the first real prompt. \|
	296	+	\| `/settings` \| Change persistent settings, including inline images, terminal alerts, AI terminal titles, auto-subagents, Ponytail coding mode, fast mode, main/sub-agent LSP access, and the auto-compact threshold. `/fast` is a shortcut for the fast-mode toggle. Saved to `$ZUT_HOME/config.json`; setting changes apply without a restart, while AI title generation waits for the first real prompt. \|
296	297		\| `/clear` \| Clear the chat transcript. \|
297	298		\| `/exit` \| Exit zut. \|
298	299

@@ -400,7 +401,7 @@ Opens a dialog with every persistent setting. `up`/`down` to navigate, `enter` o
400	401		- AI terminal titles — after the first real prompt of a fresh interactive session, make one small hidden request to the active model and set the terminal title to `zut: <title>`. The title is limited to 40 Unicode characters, persisted with the session, restored on resume, and never added to the conversation. Enabled by default; disable it to avoid the extra model request. The toggle applies immediately, but title generation still waits for the first real prompt and never starts from startup context, resumed history, or slash commands. Persists as `terminal_title_enabled`.
401	402		- auto-subagents — let the main agent spawn background sub-agents in parallel via `subagent_spawn` and query live state via `subagent_status`. Off by default. The tools accept named profiles, reasoning, timeout, turn limits, and shared/worktree isolation where applicable; lifecycle and result references are persisted. Completion updates still arrive through the auto-subagents watcher. See `/subagents` and [docs/subagents.md](docs/subagents.md) for details.
402	403		- Ponytail coding mode — include compact engineering guidance in each resolved system prompt; the guidance tells the model to apply it to coding, debugging, and review work rather than ordinary conversation. It favors understanding the real flow, small validated changes, reuse, and preserving safety checks. Enabled by default; changes apply to the next model call and persist as `ponytail_enabled` in `$ZUT_HOME/config.json`. It is included by interactive, print, stream, JSON, RPC, subagent, bot, SDK, and Zutfile agents.
403		-	- fast mode — request OpenAI's Fast service tier for OpenAI, OpenAI Responses, and OpenAI Codex models. Off by default; changes apply on the next model call and persist as `fast_mode`. Other providers return an unsupported-provider error. Fast mode may cost more and depends on the selected OpenAI model/account.
	404	+	- fast mode — request the provider's fast tier where supported. It currently uses OpenAI's Fast service tier for OpenAI, OpenAI Responses, and OpenAI Codex models. Off by default; toggle it with `/fast` or `/settings`; changes apply on the next model call and persist as `fast_mode`. Other providers currently return an unsupported-provider error. Fast mode may cost more and depends on the selected model/account.
404	405		- lsp in main session — enable the built-in `lsp` tool and code diagnostics for the main agent. Enabled by default; changes persist as `lsp_enabled`.
405	406		- lsp in sub-agents — allow newly spawned background sub-agents to use the built-in `lsp` tool. Enabled by default; changes persist as `subagent_lsp_enabled` and apply when a child starts.
406	407		- auto-compact threshold — choose `off`, `70%`, `80%`, `85%` (default), or `90%` of the model's advertised context window. The selected percentage controls automatic compaction before and after interactive turns and persists as `auto_compact_threshold`. After a successful threshold compaction, zut automatically resumes an unfinished most-recent intent; a prompt queued during compaction takes priority. `off` disables percentage-based triggers but keeps manual `/compact` and automatic recovery from context-window and payload-too-large responses.

 | `/logout [provider]` | Clear credentials for any logged-in provider, or all when omitted. `/logout openai-codex` clears ChatGPT/Codex subscription auth while preserving a public OpenAI API key; `/logout kimi` also disables fallback to the official Kimi Code CLI token until you log in to Kimi through zut again. |
 | `/model` | Pick a model from a list (or `/model <id>` to set directly). |
 | `/reasoning` | Set the reasoning level for subsequent model calls. |
+| `/fast` | Toggle fast mode for subsequent model calls. |
 | `/llama` | Connect to the configured llama.cpp router, load, unload, or remove cached models, and search/download GGUF models from Hugging Face with live progress. Shown after llama.cpp login is configured. |
 | `/sessions` | Resume a previous session for this directory. The picker omits branches created only for tree navigation. |
 | `/fork` | Pick a previous user message and fork the current session after that turn. The selected turn becomes branch context and no provider turn starts during the checkout. |
 | `/unjail` | Allow tools to touch paths outside again. |
 | `/reload-ext` | Hot-reload all extensions (re-read manifests, respawn subprocesses, rebuild tool registry). |
 | `/telegram` | Connect, disconnect, or show status of the Telegram bridge (takes `connect` / `disconnect` / `status` as an optional argument; opens a picker without one). When connected, DMs from the paired user become prompts in the running session and the assistant's replies are mirrored back to Telegram. Alias: `/tg`. |
-| `/settings` | Change persistent settings, including inline images, terminal alerts, AI terminal titles, auto-subagents, Ponytail coding mode, fast mode, main/sub-agent LSP access, and the auto-compact threshold. Saved to `$ZUT_HOME/config.json`; setting changes apply without a restart, while AI title generation waits for the first real prompt. |
+| `/settings` | Change persistent settings, including inline images, terminal alerts, AI terminal titles, auto-subagents, Ponytail coding mode, fast mode, main/sub-agent LSP access, and the auto-compact threshold. `/fast` is a shortcut for the fast-mode toggle. Saved to `$ZUT_HOME/config.json`; setting changes apply without a restart, while AI title generation waits for the first real prompt. |
 | `/clear` | Clear the chat transcript. |
 | `/exit` | Exit zut. |
 - **AI terminal titles** — after the first real prompt of a fresh interactive session, make one small hidden request to the active model and set the terminal title to `zut: <title>`. The title is limited to 40 Unicode characters, persisted with the session, restored on resume, and never added to the conversation. Enabled by default; disable it to avoid the extra model request. The toggle applies immediately, but title generation still waits for the first real prompt and never starts from startup context, resumed history, or slash commands. Persists as `terminal_title_enabled`.
 - **auto-subagents** — let the main agent spawn background sub-agents in parallel via `subagent_spawn` and query live state via `subagent_status`. Off by default. The tools accept named profiles, reasoning, timeout, turn limits, and shared/worktree isolation where applicable; lifecycle and result references are persisted. Completion updates still arrive through the auto-subagents watcher. See `/subagents` and [docs/subagents.md](docs/subagents.md) for details.
 - **Ponytail coding mode** — include compact engineering guidance in each resolved system prompt; the guidance tells the model to apply it to coding, debugging, and review work rather than ordinary conversation. It favors understanding the real flow, small validated changes, reuse, and preserving safety checks. Enabled by default; changes apply to the next model call and persist as `ponytail_enabled` in `$ZUT_HOME/config.json`. It is included by interactive, print, stream, JSON, RPC, subagent, bot, SDK, and Zutfile agents.
-- **fast mode** — request OpenAI's Fast service tier for OpenAI, OpenAI Responses, and OpenAI Codex models. Off by default; changes apply on the next model call and persist as `fast_mode`. Other providers return an unsupported-provider error. Fast mode may cost more and depends on the selected OpenAI model/account.
+- **fast mode** — request the provider's fast tier where supported. It currently uses OpenAI's Fast service tier for OpenAI, OpenAI Responses, and OpenAI Codex models. Off by default; toggle it with `/fast` or `/settings`; changes apply on the next model call and persist as `fast_mode`. Other providers currently return an unsupported-provider error. Fast mode may cost more and depends on the selected model/account.
 - **lsp in main session** — enable the built-in `lsp` tool and code diagnostics for the main agent. Enabled by default; changes persist as `lsp_enabled`.
 - **lsp in sub-agents** — allow newly spawned background sub-agents to use the built-in `lsp` tool. Enabled by default; changes persist as `subagent_lsp_enabled` and apply when a child starts.
 - **auto-compact threshold** — choose `off`, `70%`, `80%`, `85%` (default), or `90%` of the model's advertised context window. The selected percentage controls automatic compaction before and after interactive turns and persists as `auto_compact_threshold`. After a successful threshold compaction, zut automatically resumes an unfinished most-recent intent; a prompt queued during compaction takes priority. `off` disables percentage-based triggers but keeps manual `/compact` and automatic recovery from context-window and payload-too-large responses.

M docs/providers.md +12 -10


@@ -115,16 +115,6 @@ show instructions and should be configured with environment variables.
115	115		\| Cloudflare AI Gateway \| `CLOUDFLARE_API_KEY` \| `cloudflare-ai-gateway` \|
116	116		\| Azure OpenAI Responses \| `AZURE_OPENAI_API_KEY` \| `azure-openai-responses` \|
117	117
118		-	### OpenAI Fast mode
119		-
120		-	OpenAI, OpenAI Responses, and OpenAI Codex requests can opt into OpenAI's
121		-	Fast service tier from `/settings` by enabling fast mode. The setting is
122		-	off by default and is stored as `fast_mode` in `$ZUT_HOME/config.json`.
123		-
124		-	Fast mode is currently limited to those OpenAI provider IDs. Enabling it while
125		-	using another provider returns an error instead of silently changing that
126		-	provider's request. Subagent children inherit the setting from their parent.
127		-
128	118		Example:
129	119
130	120		```bash

@@ -132,6 +122,18 @@ export OPENROUTER_API_KEY=...
132	122		zut --provider openrouter
133	123		```
134	124
	125	+	## Fast mode
	126	+
	127	+	Use `/fast` or `/settings` to enable fast mode for subsequent model calls.
	128	+	The setting is off by default and is stored as `fast_mode` in
	129	+	`$ZUT_HOME/config.json`.
	130	+
	131	+	Fast mode currently requests OpenAI's Fast service tier for OpenAI, OpenAI
	132	+	Responses, and OpenAI Codex requests. Enabling it while using another provider
	133	+	currently returns an error instead of silently changing that provider's request.
	134	+	Subagent children inherit the setting from their parent unless their profile
	135	+	sets `fastMode` explicitly.
	136	+
135	137		## Local llama.cpp router
136	138
137	139		The `llama.cpp` provider connects to a multi-model router and is separate from the `ollama` provider. Ollama normally uses `http://localhost:11434`; entering that URL for llama.cpp management produces a 404 because Ollama does not implement the router endpoints.

 | Cloudflare AI Gateway | `CLOUDFLARE_API_KEY` | `cloudflare-ai-gateway` |
 | Azure OpenAI Responses | `AZURE_OPENAI_API_KEY` | `azure-openai-responses` |
-### OpenAI Fast mode
-OpenAI, OpenAI Responses, and OpenAI Codex requests can opt into OpenAI's
-Fast service tier from `/settings` by enabling **fast mode**. The setting is
-off by default and is stored as `fast_mode` in `$ZUT_HOME/config.json`.
-Fast mode is currently limited to those OpenAI provider IDs. Enabling it while
-using another provider returns an error instead of silently changing that
-provider's request. Subagent children inherit the setting from their parent.
 Example:
 ```bash
 zut --provider openrouter
 ```
+## Fast mode
+Use `/fast` or `/settings` to enable **fast mode** for subsequent model calls.
+The setting is off by default and is stored as `fast_mode` in
+`$ZUT_HOME/config.json`.
+Fast mode currently requests OpenAI's Fast service tier for OpenAI, OpenAI
+Responses, and OpenAI Codex requests. Enabling it while using another provider
+currently returns an error instead of silently changing that provider's request.
+Subagent children inherit the setting from their parent unless their profile
+sets `fastMode` explicitly.
 ## Local llama.cpp router
 The `llama.cpp` provider connects to a multi-model router and is separate from the `ollama` provider. Ollama normally uses `http://localhost:11434`; entering that URL for llama.cpp management produces a 404 because Ollama does not implement the router endpoints.

M docs/subagents.md +2 -2


@@ -48,7 +48,7 @@ Supported metadata:
48	48		\| `systemPromptMode` \| `append` (default) or `replace`. \|
49	49		\| `inheritProjectContext` \| Set to `false` to omit `AGENTS.md` context from the child. \|
50	50		\| `inheritSkills` \| Set to `false` to omit skill discovery and the conditional `skill` loader from the child; `--no-skill` has the same effect for a run. \|
51		-	\| `fastMode` \| Optional fast-mode restriction. Omit it to inherit the host setting; `false` disables fast mode for this profile; `true` only permits fast mode when the host setting is enabled. \|
	51	+	\| `fastMode` \| Optional fast-mode override. Omit it to inherit the host setting; `false` disables fast mode for this profile; `true` enables it for this profile even when the host setting is off. \|
52	52
53	53		Other frontmatter from another agent host is ignored when zut does not have an equivalent setting. Recursive child spawning is disabled in v1; a worker cannot invoke `subagent_spawn` to create descendants.
54	54

@@ -84,7 +84,7 @@ The interactive command also supports the same selection explicitly:
84	84		/subagents new --agent implementer --reasoning high Implement the parser change
85	85		```
86	86
87		-	Shared mode preserves the historical host working directory. For parallel coding, pass `isolation:"worktree"` to `subagent_spawn`; zut creates a detached Git worktree, captures changed files and a patch, and never merges automatically. Named profiles change the child's instructions and configuration; they are not a security sandbox. A profile's `systemPromptMode` controls its own body relative to the built-in identity; global append addenda, including enabled Ponytail coding guidance, remain present. Child credentials are transferred over stdin rather than argv or persisted metadata, and the active provider endpoint/TLS setting is inherited only when the child uses that provider. Fast mode is inherited by default. A profile with `fastMode: false` opts out, while `fastMode: true` cannot enable fast mode when the host setting is off. Non-OpenAI child providers return an unsupported-provider error instead of silently ignoring an enabled setting.
	87	+	Shared mode preserves the historical host working directory. For parallel coding, pass `isolation:"worktree"` to `subagent_spawn`; zut creates a detached Git worktree, captures changed files and a patch, and never merges automatically. Named profiles change the child's instructions and configuration; they are not a security sandbox. A profile's `systemPromptMode` controls its own body relative to the built-in identity; globally appended instructions, including enabled Ponytail coding guidance, remain present. Child credentials are transferred over stdin rather than argv or persisted metadata, and the active provider endpoint/TLS setting is inherited only when the child uses that provider. Fast mode is inherited by default. A profile with `fastMode: false` opts out, while `fastMode: true` enables fast mode even when the host setting is off; the `subagent_spawn` result warns the parent session when this override occurs. Child providers that do not yet support fast mode return an unsupported-provider error instead of silently ignoring an enabled setting.
88	88
89	89		## Lifecycle, results, and recovery
90	90


@@ -48,7 +48,7 @@ Supported metadata:
48		\| `systemPromptMode` \| `append` (default) or `replace`. \|	48		\| `systemPromptMode` \| `append` (default) or `replace`. \|
49		\| `inheritProjectContext` \| Set to `false` to omit `AGENTS.md` context from the child. \|	49		\| `inheritProjectContext` \| Set to `false` to omit `AGENTS.md` context from the child. \|
50		\| `inheritSkills` \| Set to `false` to omit skill discovery and the conditional `skill` loader from the child; `--no-skill` has the same effect for a run. \|	50		\| `inheritSkills` \| Set to `false` to omit skill discovery and the conditional `skill` loader from the child; `--no-skill` has the same effect for a run. \|
51	-	\| `fastMode` \| Optional fast-mode restriction. Omit it to inherit the host setting; `false` disables fast mode for this profile; `true` only permits fast mode when the host setting is enabled. \|	51	+	\| `fastMode` \| Optional fast-mode override. Omit it to inherit the host setting; `false` disables fast mode for this profile; `true` enables it for this profile even when the host setting is off. \|
52			52
53		Other frontmatter from another agent host is ignored when zut does not have an equivalent setting. Recursive child spawning is disabled in v1; a worker cannot invoke `subagent_spawn` to create descendants.	53		Other frontmatter from another agent host is ignored when zut does not have an equivalent setting. Recursive child spawning is disabled in v1; a worker cannot invoke `subagent_spawn` to create descendants.
54			54

@@ -84,7 +84,7 @@ The interactive command also supports the same selection explicitly:
84		/subagents new --agent implementer --reasoning high Implement the parser change	84		/subagents new --agent implementer --reasoning high Implement the parser change
85		```	85		```
86			86
87	-	Shared mode preserves the historical host working directory. For parallel coding, pass `isolation:"worktree"` to `subagent_spawn`; zut creates a detached Git worktree, captures changed files and a patch, and never merges automatically. Named profiles change the child's instructions and configuration; they are not a security sandbox. A profile's `systemPromptMode` controls its own body relative to the built-in identity; global append addenda, including enabled Ponytail coding guidance, remain present. Child credentials are transferred over stdin rather than argv or persisted metadata, and the active provider endpoint/TLS setting is inherited only when the child uses that provider. Fast mode is inherited by default. A profile with `fastMode: false` opts out, while `fastMode: true` cannot enable fast mode when the host setting is off. Non-OpenAI child providers return an unsupported-provider error instead of silently ignoring an enabled setting.	87	+	Shared mode preserves the historical host working directory. For parallel coding, pass `isolation:"worktree"` to `subagent_spawn`; zut creates a detached Git worktree, captures changed files and a patch, and never merges automatically. Named profiles change the child's instructions and configuration; they are not a security sandbox. A profile's `systemPromptMode` controls its own body relative to the built-in identity; globally appended instructions, including enabled Ponytail coding guidance, remain present. Child credentials are transferred over stdin rather than argv or persisted metadata, and the active provider endpoint/TLS setting is inherited only when the child uses that provider. Fast mode is inherited by default. A profile with `fastMode: false` opts out, while `fastMode: true` enables fast mode even when the host setting is off; the `subagent_spawn` result warns the parent session when this override occurs. Child providers that do not yet support fast mode return an unsupported-provider error instead of silently ignoring an enabled setting.
88			88
89		## Lifecycle, results, and recovery	89		## Lifecycle, results, and recovery
90			90

M packages/agent/build.go +4 -5


@@ -780,12 +780,11 @@ func Resolve(args Args, requireCred bool) (Resolved, error) {
780	780		if args.FastModeSet {
781	781		fastMode = args.FastMode
782	782		}
783		-	// A profile can opt out of the effective host/child fast-mode setting,
784		-	// but it does not enable fast mode by itself. Keep this as a
785		-	// restriction on the effective value rather than an override so an
786		-	// explicit child --fast-mode flag cannot bypass fastMode: false.
	783	+	// A profile's explicit fastMode setting overrides the global setting
	784	+	// for this child. This preserves fastMode: false as an opt-out while
	785	+	// allowing fastMode: true to request the fast tier for a focused worker.
787	786		if selectedProfile != nil && selectedProfile.FastMode != nil {
788		-	fastMode = fastMode && *selectedProfile.FastMode
	787	+	fastMode = *selectedProfile.FastMode
789	788		}
790	789
791	790		max := args.MaxSteps // 0 = unlimited

 	if args.FastModeSet {
 		fastMode = args.FastMode
 	}
-	// A profile can opt out of the effective host/child fast-mode setting,
+	// A profile's explicit fastMode setting overrides the global setting
-	// but it does not enable fast mode by itself. Keep this as a
+	// for this child. This preserves fastMode: false as an opt-out while
-	// restriction on the effective value rather than an override so an
+	// allowing fastMode: true to request the fast tier for a focused worker.
-	// explicit child --fast-mode flag cannot bypass fastMode: false.
 	if selectedProfile != nil && selectedProfile.FastMode != nil {
-		fastMode = fastMode && *selectedProfile.FastMode
+		fastMode = *selectedProfile.FastMode
 	}
 	max := args.MaxSteps // 0 = unlimited

M packages/agent/build_test.go +2 -2


@@ -300,7 +300,7 @@ You are a read-only reviewer.
300	300		}
301	301		}
302	302
303		-	func TestResolveSubagentFastModeUsesHostSettingAsAnUpperBound(t *testing.T) {
	303	+	func TestResolveSubagentFastModeProfileOverridesHostSetting(t *testing.T) {
304	304		cases := []struct {
305	305		name string
306	306		hostFastMode bool

@@ -312,7 +312,7 @@ func TestResolveSubagentFastModeUsesHostSettingAsAnUpperBound(t *testing.T) {
312	312		{name: "unset inherits enabled host", hostFastMode: true, wantFastMode: true},
313	313		{name: "unset inherits disabled host", hostFastMode: false, wantFastMode: false},
314	314		{name: "false disables enabled host", hostFastMode: true, profileFast: boolPtr(false), wantFastMode: false},
315		-	{name: "true cannot enable disabled host", hostFastMode: false, profileFast: boolPtr(true), wantFastMode: false},
	315	+	{name: "true enables disabled host", hostFastMode: false, profileFast: boolPtr(true), wantFastMode: true},
316	316		{name: "false stays disabled with disabled host", hostFastMode: false, profileFast: boolPtr(false), wantFastMode: false},
317	317		{name: "profile false cannot be bypassed", hostFastMode: true, profileFast: boolPtr(false), argFastMode: true, argFastSet: true, wantFastMode: false},
318	318		}


@@ -300,7 +300,7 @@ You are a read-only reviewer.
300		}	300		}
301		}	301		}
302			302
303	-	func TestResolveSubagentFastModeUsesHostSettingAsAnUpperBound(t *testing.T) {	303	+	func TestResolveSubagentFastModeProfileOverridesHostSetting(t *testing.T) {
304		cases := []struct {	304		cases := []struct {
305		name string	305		name string
306		hostFastMode bool	306		hostFastMode bool

@@ -312,7 +312,7 @@ func TestResolveSubagentFastModeUsesHostSettingAsAnUpperBound(t *testing.T) {
312		{name: "unset inherits enabled host", hostFastMode: true, wantFastMode: true},	312		{name: "unset inherits enabled host", hostFastMode: true, wantFastMode: true},
313		{name: "unset inherits disabled host", hostFastMode: false, wantFastMode: false},	313		{name: "unset inherits disabled host", hostFastMode: false, wantFastMode: false},
314		{name: "false disables enabled host", hostFastMode: true, profileFast: boolPtr(false), wantFastMode: false},	314		{name: "false disables enabled host", hostFastMode: true, profileFast: boolPtr(false), wantFastMode: false},
315	-	{name: "true cannot enable disabled host", hostFastMode: false, profileFast: boolPtr(true), wantFastMode: false},	315	+	{name: "true enables disabled host", hostFastMode: false, profileFast: boolPtr(true), wantFastMode: true},
316		{name: "false stays disabled with disabled host", hostFastMode: false, profileFast: boolPtr(false), wantFastMode: false},	316		{name: "false stays disabled with disabled host", hostFastMode: false, profileFast: boolPtr(false), wantFastMode: false},
317		{name: "profile false cannot be bypassed", hostFastMode: true, profileFast: boolPtr(false), argFastMode: true, argFastSet: true, wantFastMode: false},	317		{name: "profile false cannot be bypassed", hostFastMode: true, profileFast: boolPtr(false), argFastMode: true, argFastSet: true, wantFastMode: false},
318		}	318		}

M packages/agent/modes/fast_mode_test.go +33 -0


@@ -6,6 +6,7 @@ import (
6	6		"strings"
7	7		"testing"
8	8
	9	+	"github.com/bnema/zut/packages/agent/subagents"
9	10		"github.com/bnema/zut/packages/core"
10	11		"github.com/bnema/zut/packages/provider"
11	12		)

@@ -76,6 +77,38 @@ func TestApplyFastModeUpdatesAgentAndStore(t *testing.T) {
76	77		}
77	78		}
78	79
	80	+	func TestFastSlashTogglesFastMode(t *testing.T) {
	81	+	store := &recordingFastModeSettingsStore{}
	82	+	agent := core.NewAgent(fastModeProviderClient{}, "gpt-5", "", nil)
	83	+	supervisor := subagents.New(subagents.Config{Root: t.TempDir(), RepoRoot: t.TempDir()})
	84	+	interactive := NewInteractive(InteractiveConfig{
	85	+	Provider: "openai",
	86	+	Model: "gpt-5",
	87	+	SettingsStore: store,
	88	+	Agent: agent,
	89	+	Supervisor: supervisor,
	90	+	})
	91	+	interactive.rend = nil
	92	+
	93	+	if interactive.runSlash(context.Background(), "/FAST") {
	94	+	t.Fatal("/fast requested exit")
	95	+	}
	96	+	if interactive.cfg.FastMode == nil \|\| !*interactive.cfg.FastMode \|\| !agent.FastMode \|\| !supervisor.FastMode() {
	97	+	t.Fatalf("/fast did not enable every live fast-mode target: cfg=%v agent=%v supervisor=%v", interactive.cfg.FastMode, agent.FastMode, supervisor.FastMode())
	98	+	}
	99	+	if store.setCalls != 1 \|\| !store.last \|\| interactive.statusOK != "fast mode enabled" {
	100	+	t.Fatalf("enable persistence/status = calls=%d last=%v status=%q", store.setCalls, store.last, interactive.statusOK)
	101	+	}
	102	+
	103	+	interactive.runSlash(context.Background(), "/fast")
	104	+	if interactive.cfg.FastMode == nil \|\| *interactive.cfg.FastMode \|\| agent.FastMode \|\| supervisor.FastMode() {
	105	+	t.Fatalf("/fast did not disable every live fast-mode target: cfg=%v agent=%v supervisor=%v", interactive.cfg.FastMode, agent.FastMode, supervisor.FastMode())
	106	+	}
	107	+	if store.setCalls != 2 \|\| store.last \|\| interactive.statusOK != "fast mode disabled" {
	108	+	t.Fatalf("disable persistence/status = calls=%d last=%v status=%q", store.setCalls, store.last, interactive.statusOK)
	109	+	}
	110	+	}
	111	+
79	112		func TestApplyFastModeRejectsUnsupportedProvider(t *testing.T) {
80	113		store := &recordingFastModeSettingsStore{}
81	114		interactive := NewInteractive(InteractiveConfig{


@@ -6,6 +6,7 @@ import (
6	"strings"	6		"strings"
7	"testing"	7		"testing"
8		8
		9	+	"github.com/bnema/zut/packages/agent/subagents"
9	"github.com/bnema/zut/packages/core"	10		"github.com/bnema/zut/packages/core"
10	"github.com/bnema/zut/packages/provider"	11		"github.com/bnema/zut/packages/provider"
11	)	12		)

@@ -76,6 +77,38 @@ func TestApplyFastModeUpdatesAgentAndStore(t *testing.T) {
76	}	77		}
77	}	78		}
78		79
		80	+	func TestFastSlashTogglesFastMode(t *testing.T) {
		81	+	store := &recordingFastModeSettingsStore{}
		82	+	agent := core.NewAgent(fastModeProviderClient{}, "gpt-5", "", nil)
		83	+	supervisor := subagents.New(subagents.Config{Root: t.TempDir(), RepoRoot: t.TempDir()})
		84	+	interactive := NewInteractive(InteractiveConfig{
		85	+	Provider: "openai",
		86	+	Model: "gpt-5",
		87	+	SettingsStore: store,
		88	+	Agent: agent,
		89	+	Supervisor: supervisor,
		90	+	})
		91	+	interactive.rend = nil
		92	+
		93	+	if interactive.runSlash(context.Background(), "/FAST") {
		94	+	t.Fatal("/fast requested exit")
		95	+	}
		96	+	if interactive.cfg.FastMode == nil \|\| !*interactive.cfg.FastMode \|\| !agent.FastMode \|\| !supervisor.FastMode() {
		97	+	t.Fatalf("/fast did not enable every live fast-mode target: cfg=%v agent=%v supervisor=%v", interactive.cfg.FastMode, agent.FastMode, supervisor.FastMode())
		98	+	}
		99	+	if store.setCalls != 1 \|\| !store.last \|\| interactive.statusOK != "fast mode enabled" {
		100	+	t.Fatalf("enable persistence/status = calls=%d last=%v status=%q", store.setCalls, store.last, interactive.statusOK)
		101	+	}
		102	+
		103	+	interactive.runSlash(context.Background(), "/fast")
		104	+	if interactive.cfg.FastMode == nil \|\| *interactive.cfg.FastMode \|\| agent.FastMode \|\| supervisor.FastMode() {
		105	+	t.Fatalf("/fast did not disable every live fast-mode target: cfg=%v agent=%v supervisor=%v", interactive.cfg.FastMode, agent.FastMode, supervisor.FastMode())
		106	+	}
		107	+	if store.setCalls != 2 \|\| store.last \|\| interactive.statusOK != "fast mode disabled" {
		108	+	t.Fatalf("disable persistence/status = calls=%d last=%v status=%q", store.setCalls, store.last, interactive.statusOK)
		109	+	}
		110	+	}
		111	+
79	func TestApplyFastModeRejectsUnsupportedProvider(t *testing.T) {	112		func TestApplyFastModeRejectsUnsupportedProvider(t *testing.T) {
80	store := &recordingFastModeSettingsStore{}	113		store := &recordingFastModeSettingsStore{}
81	interactive := NewInteractive(InteractiveConfig{	114		interactive := NewInteractive(InteractiveConfig{

M packages/agent/modes/interactive.go +4 -1


@@ -4317,7 +4317,7 @@ func (i *Interactive) openSettingsDialog() {
4317	4317		{
4318	4318		key: "fast_mode",
4319	4319		label: "fast mode",
4320		-	desc: "request OpenAI's fast service tier; unsupported providers return an error",
	4320	+	desc: "request the provider's fast tier where supported; unsupported providers return an error",
4321	4321		value: fastMode,
4322	4322		hint: fastModeHint,
4323	4323		},

@@ -5544,6 +5544,9 @@ func (i *Interactive) runSlash(ctx context.Context, cmd string) (done bool) {
5544	5544		}
5545	5545		case "/reasoning":
5546	5546		i.openReasoningDialog()
	5547	+	case "/fast":
	5548	+	enabled := i.cfg.FastMode == nil \|\| !*i.cfg.FastMode
	5549	+	i.applySettingToggle("fast_mode", enabled)
5547	5550		case "/settings":
5548	5551		i.openSettingsDialog()
5549	5552		case "/sessions":

 		{
 			key:   "fast_mode",
 			label: "fast mode",
-			desc:  "request OpenAI's fast service tier; unsupported providers return an error",
+			desc:  "request the provider's fast tier where supported; unsupported providers return an error",
 			value: fastMode,
 			hint:  fastModeHint,
 		},
 		}
 	case "/reasoning":
 		i.openReasoningDialog()
+	case "/fast":
+		enabled := i.cfg.FastMode == nil || !*i.cfg.FastMode
+		i.applySettingToggle("fast_mode", enabled)
 	case "/settings":
 		i.openSettingsDialog()
 	case "/sessions":

M packages/agent/modes/slash_suggest.go +1 -0


@@ -51,6 +51,7 @@ var slashCatalog = []slashCommand{
51	51		{Name: "/logout", Desc: "clear a provider's credentials"},
52	52		{Name: "/model", Desc: "pick a model (or /model <id>)"},
53	53		{Name: "/reasoning", Desc: "set the reasoning level"},
	54	+	{Name: "/fast", Desc: "toggle fast mode"},
54	55		{Name: "/llama", Desc: "manage llama.cpp router models"},
55	56		{Name: "/sessions", Desc: "resume a previous session for this directory"},
56	57		{Name: "/fork", Desc: "pick a user message and fork the current session"},


@@ -51,6 +51,7 @@ var slashCatalog = []slashCommand{
51	{Name: "/logout", Desc: "clear a provider's credentials"},	51		{Name: "/logout", Desc: "clear a provider's credentials"},
52	{Name: "/model", Desc: "pick a model (or /model <id>)"},	52		{Name: "/model", Desc: "pick a model (or /model <id>)"},
53	{Name: "/reasoning", Desc: "set the reasoning level"},	53		{Name: "/reasoning", Desc: "set the reasoning level"},
		54	+	{Name: "/fast", Desc: "toggle fast mode"},
54	{Name: "/llama", Desc: "manage llama.cpp router models"},	55		{Name: "/llama", Desc: "manage llama.cpp router models"},
55	{Name: "/sessions", Desc: "resume a previous session for this directory"},	56		{Name: "/sessions", Desc: "resume a previous session for this directory"},
56	{Name: "/fork", Desc: "pick a user message and fork the current session"},	57		{Name: "/fork", Desc: "pick a user message and fork the current session"},

M packages/agent/modes/slash_suggest_test.go +10 -0


@@ -44,6 +44,16 @@ func TestSlashSuggesterHasSupervisor(t *testing.T) {
44	44		}
45	45		}
46	46
	47	+	func TestSlashSuggesterHasFastModeToggle(t *testing.T) {
	48	+	s := newSlashSuggester()
	49	+	if got := commandNames(s.matches("/fa")); !contains(got, "/fast") {
	50	+	t.Fatalf("/fast missing from suggestions, got %v", got)
	51	+	}
	52	+	if !isKnownSlashCommand("/FAST") {
	53	+	t.Fatal("/FAST was not recognized as a built-in command")
	54	+	}
	55	+	}
	56	+
47	57		func TestSlashCommandsAreCaseInsensitive(t *testing.T) {
48	58		s := newSlashSuggester()
49	59		if got := commandNames(s.matches("/EX")); !contains(got, "/exit") {


@@ -44,6 +44,16 @@ func TestSlashSuggesterHasSupervisor(t *testing.T) {
44	}	44		}
45	}	45		}
46		46
		47	+	func TestSlashSuggesterHasFastModeToggle(t *testing.T) {
		48	+	s := newSlashSuggester()
		49	+	if got := commandNames(s.matches("/fa")); !contains(got, "/fast") {
		50	+	t.Fatalf("/fast missing from suggestions, got %v", got)
		51	+	}
		52	+	if !isKnownSlashCommand("/FAST") {
		53	+	t.Fatal("/FAST was not recognized as a built-in command")
		54	+	}
		55	+	}
		56	+
47	func TestSlashCommandsAreCaseInsensitive(t *testing.T) {	57		func TestSlashCommandsAreCaseInsensitive(t *testing.T) {
48	s := newSlashSuggester()	58		s := newSlashSuggester()
49	if got := commandNames(s.matches("/EX")); !contains(got, "/exit") {	59		if got := commandNames(s.matches("/EX")); !contains(got, "/exit") {

M packages/agent/subagents/agent.go +12 -0


@@ -57,6 +57,12 @@ type Agent struct {
57	57		FastMode bool
58	58		Subagent string
59	59
	60	+	// fastModeOverridesHost records the spawn-time case where an explicit
	61	+	// profile fastMode: true enabled the child while the host was off. It is
	62	+	// intentionally transient: the parent only needs it to report the initial
	63	+	// spawn warning, while the effective FastMode remains durable state.
	64	+	fastModeOverridesHost bool
	65	+
60	66		// SessionID, when non-empty, scopes the agent to a particular
61	67		// host zut session: the dashboard only surfaces agents whose
62	68		// SessionID matches the active session. Empty means "unscoped" and

@@ -167,6 +173,12 @@ type Agent struct {
167	173		// doesn't speak the daemon protocol).
168	174		func (a Agent) Inbox() Inbox { return a.inbox }
169	175
	176	+	// FastModeOverridesHost reports whether this child was created with an
	177	+	// explicit fast-mode override while the host setting was disabled.
	178	+	func (a *Agent) FastModeOverridesHost() bool {
	179	+	return a != nil && a.fastModeOverridesHost
	180	+	}
	181	+
170	182		// Status returns the current high-level status. Cheap; safe from any goroutine.
171	183		func (a *Agent) Status() Status {
172	184		a.mu.Lock()


@@ -57,6 +57,12 @@ type Agent struct {
57	FastMode bool	57		FastMode bool
58	Subagent string	58		Subagent string
59		59
		60	+	// fastModeOverridesHost records the spawn-time case where an explicit
		61	+	// profile fastMode: true enabled the child while the host was off. It is
		62	+	// intentionally transient: the parent only needs it to report the initial
		63	+	// spawn warning, while the effective FastMode remains durable state.
		64	+	fastModeOverridesHost bool
		65	+
60	// SessionID, when non-empty, scopes the agent to a particular	66		// SessionID, when non-empty, scopes the agent to a particular
61	// host zut session: the dashboard only surfaces agents whose	67		// host zut session: the dashboard only surfaces agents whose
62	// SessionID matches the active session. Empty means "unscoped" and	68		// SessionID matches the active session. Empty means "unscoped" and

@@ -167,6 +173,12 @@ type Agent struct {
167	// doesn't speak the daemon protocol).	173		// doesn't speak the daemon protocol).
168	func (a Agent) Inbox() Inbox { return a.inbox }	174		func (a Agent) Inbox() Inbox { return a.inbox }
169		175
		176	+	// FastModeOverridesHost reports whether this child was created with an
		177	+	// explicit fast-mode override while the host setting was disabled.
		178	+	func (a *Agent) FastModeOverridesHost() bool {
		179	+	return a != nil && a.fastModeOverridesHost
		180	+	}
		181	+
170	// Status returns the current high-level status. Cheap; safe from any goroutine.	182		// Status returns the current high-level status. Cheap; safe from any goroutine.
171	func (a *Agent) Status() Status {	183		func (a *Agent) Status() Status {
172	a.mu.Lock()	184		a.mu.Lock()

M packages/agent/subagents/fast_mode_test.go +10 -6


@@ -58,18 +58,19 @@ func TestSupervisorFastModePropagatesToChild(t *testing.T) {
58	58		}
59	59		}
60	60
61		-	func TestSpawnRequestFastModeIsBoundByHostSetting(t *testing.T) {
	61	+	func TestSpawnRequestFastModeProfileOverridesHostSetting(t *testing.T) {
62	62		falseValue, trueValue := false, true
63	63		cases := []struct {
64		-	name string
65		-	hostFast bool
66		-	profileFast *bool
67		-	want bool
	64	+	name string
	65	+	hostFast bool
	66	+	profileFast *bool
	67	+	want bool
	68	+	wantHostOverride bool
68	69		}{
69	70		{name: "unset inherits enabled host", hostFast: true, want: true},
70	71		{name: "unset inherits disabled host", hostFast: false, want: false},
71	72		{name: "false disables enabled host", hostFast: true, profileFast: &falseValue, want: false},
72		-	{name: "true cannot enable disabled host", hostFast: false, profileFast: &trueValue, want: false},
	73	+	{name: "true enables disabled host", hostFast: false, profileFast: &trueValue, want: true, wantHostOverride: true},
73	74		{name: "true preserves enabled host", hostFast: true, profileFast: &trueValue, want: true},
74	75		}
75	76		for _, tc := range cases {

@@ -91,6 +92,9 @@ func TestSpawnRequestFastModeIsBoundByHostSetting(t *testing.T) {
91	92		if a.FastMode != tc.want {
92	93		t.Fatalf("FastMode = %v, want %v", a.FastMode, tc.want)
93	94		}
	95	+	if a.FastModeOverridesHost() != tc.wantHostOverride {
	96	+	t.Fatalf("FastModeOverridesHost() = %v, want %v", a.FastModeOverridesHost(), tc.wantHostOverride)
	97	+	}
94	98		args := defaultChildArgs("/zut", a, "/session", "/inbox")
95	99		wantFlag := "--no-fast-mode"
96	100		if tc.want {

 	}
 }
-func TestSpawnRequestFastModeIsBoundByHostSetting(t *testing.T) {
+func TestSpawnRequestFastModeProfileOverridesHostSetting(t *testing.T) {
 	falseValue, trueValue := false, true
 	cases := []struct {
-		name        string
+		name             string
-		hostFast    bool
+		hostFast         bool
-		profileFast *bool
+		profileFast      *bool
-		want        bool
+		want             bool
+		wantHostOverride bool
 	}{
 		{name: "unset inherits enabled host", hostFast: true, want: true},
 		{name: "unset inherits disabled host", hostFast: false, want: false},
 		{name: "false disables enabled host", hostFast: true, profileFast: &falseValue, want: false},
-		{name: "true cannot enable disabled host", hostFast: false, profileFast: &trueValue, want: false},
+		{name: "true enables disabled host", hostFast: false, profileFast: &trueValue, want: true, wantHostOverride: true},
 		{name: "true preserves enabled host", hostFast: true, profileFast: &trueValue, want: true},
 	}
 	for _, tc := range cases {
 			if a.FastMode != tc.want {
 				t.Fatalf("FastMode = %v, want %v", a.FastMode, tc.want)
 			}
+			if a.FastModeOverridesHost() != tc.wantHostOverride {
+				t.Fatalf("FastModeOverridesHost() = %v, want %v", a.FastModeOverridesHost(), tc.wantHostOverride)
+			}
 			args := defaultChildArgs("/zut", a, "/session", "/inbox")
 			wantFlag := "--no-fast-mode"
 			if tc.want {

M packages/agent/subagents/supervisor.go +7 -5


@@ -306,7 +306,7 @@ func (f *Supervisor) uniqueAgentIDLocked(base string) string {
306	306		// chosen model regardless of the parent's current selection. A named
307	307		// Subagent is passed to the child as --subagent, where it resolves the
308	308		// markdown profile and applies its instructions. Reasoning is passed
309		-	// as --reasoning when set. FastMode restricts the host setting when a
	309	+	// as --reasoning when set. FastMode overrides the host setting when a
310	310		// selected profile declares a fastMode preference.
311	311		type SpawnRequest struct {
312	312		Task string

@@ -317,9 +317,8 @@ type SpawnRequest struct {
317	317		// effective custom provider endpoint.
318	318		InsecureTLS bool
319	319		Reasoning string // optional reasoning/thinking level override
320		-	// FastMode is an optional profile restriction. A non-nil false value
321		-	// disables fast mode for this child; true still cannot enable fast mode
322		-	// when Config.FastMode is false. Nil inherits Config.FastMode.
	320	+	// FastMode is an optional profile override. A non-nil value enables or
	321	+	// disables fast mode for this child; nil inherits Config.FastMode.
323	322		FastMode *bool
324	323		Subagent string // optional named markdown profile
325	324

@@ -386,8 +385,10 @@ func (f Supervisor) SpawnReq(ctx context.Context, req SpawnRequest) (Agent, er
386	385		configInsecureTLS := f.cfg.InsecureTLS
387	386		sessionID := f.activeSession
388	387		f.mu.Unlock()
	388	+	fastModeOverridesHost := false
389	389		if req.FastMode != nil {
390		-	fastMode = fastMode && *req.FastMode
	390	+	fastModeOverridesHost = !fastMode && *req.FastMode
	391	+	fastMode = *req.FastMode
391	392		}
392	393		childProvider := strings.TrimSpace(req.Provider)
393	394		inheritProviderSettings := childProvider == "" \|\| configProvider == "" \|\| strings.EqualFold(childProvider, strings.TrimSpace(configProvider))

@@ -509,6 +510,7 @@ func (f Supervisor) SpawnReq(ctx context.Context, req SpawnRequest) (Agent, er
509	510		done: make(chan struct{}),
510	511		turnResults: make(chan *TurnResult, 16),
511	512		}
	513	+	a.fastModeOverridesHost = fastModeOverridesHost
512	514		if a.RootSessionID == "" {
513	515		a.RootSessionID = sessionID
514	516		}

 // chosen model regardless of the parent's current selection. A named
 // Subagent is passed to the child as --subagent, where it resolves the
 // markdown profile and applies its instructions. Reasoning is passed
-// as --reasoning when set. FastMode restricts the host setting when a
+// as --reasoning when set. FastMode overrides the host setting when a
 // selected profile declares a fastMode preference.
 type SpawnRequest struct {
 	Task     string
 	// effective custom provider endpoint.
 	InsecureTLS bool
 	Reasoning   string // optional reasoning/thinking level override
-	// FastMode is an optional profile restriction. A non-nil false value
+	// FastMode is an optional profile override. A non-nil value enables or
-	// disables fast mode for this child; true still cannot enable fast mode
+	// disables fast mode for this child; nil inherits Config.FastMode.
-	// when Config.FastMode is false. Nil inherits Config.FastMode.
 	FastMode *bool
 	Subagent string // optional named markdown profile
 	configInsecureTLS := f.cfg.InsecureTLS
 	sessionID := f.activeSession
 	f.mu.Unlock()
+	fastModeOverridesHost := false
 	if req.FastMode != nil {
-		fastMode = fastMode && *req.FastMode
+		fastModeOverridesHost = !fastMode && *req.FastMode
+		fastMode = *req.FastMode
 	}
 	childProvider := strings.TrimSpace(req.Provider)
 	inheritProviderSettings := childProvider == "" || configProvider == "" || strings.EqualFold(childProvider, strings.TrimSpace(configProvider))
 		done:              make(chan struct{}),
 		turnResults:       make(chan *TurnResult, 16),
 	}
+	a.fastModeOverridesHost = fastModeOverridesHost
 	if a.RootSessionID == "" {
 		a.RootSessionID = sessionID
 	}

M packages/agent/tools/subagent_spawn.go +3 -0


@@ -274,6 +274,9 @@ func (t *SubagentSpawnTool) Execute(ctx context.Context, raw json.RawMessage, pr
274	274		if agent.FastMode {
275	275		sb.WriteString("fast mode: enabled\n")
276	276		}
	277	+	if fastModeOverride != nil && *fastModeOverride && agent.FastModeOverridesHost() {
	278	+	sb.WriteString("warning: subagent profile has fast mode enabled, overriding global fast mode off\n")
	279	+	}
277	280		sb.WriteString("\nThe sub-agent is running in the background. Use /subagents in the TUI to monitor it. ")
278	281		sb.WriteString("This conversation continues immediately; do not wait for the sub-agent to finish before working on the next thing.")
279	282		return core.ToolResult{


@@ -274,6 +274,9 @@ func (t *SubagentSpawnTool) Execute(ctx context.Context, raw json.RawMessage, pr
274	if agent.FastMode {	274		if agent.FastMode {
275	sb.WriteString("fast mode: enabled\n")	275		sb.WriteString("fast mode: enabled\n")
276	}	276		}
		277	+	if fastModeOverride != nil && *fastModeOverride && agent.FastModeOverridesHost() {
		278	+	sb.WriteString("warning: subagent profile has fast mode enabled, overriding global fast mode off\n")
		279	+	}
277	sb.WriteString("\nThe sub-agent is running in the background. Use /subagents in the TUI to monitor it. ")	280		sb.WriteString("\nThe sub-agent is running in the background. Use /subagents in the TUI to monitor it. ")
278	sb.WriteString("This conversation continues immediately; do not wait for the sub-agent to finish before working on the next thing.")	281		sb.WriteString("This conversation continues immediately; do not wait for the sub-agent to finish before working on the next thing.")
279	return core.ToolResult{	282		return core.ToolResult{

M packages/agent/tools/subagent_spawn_test.go +41 -0


@@ -299,6 +299,47 @@ func TestSubagentSpawnAppliesProfileFastModeRestriction(t *testing.T) {
299	299		}
300	300		}
301	301
	302	+	func TestSubagentSpawnProfileFastModeOverridesGlobalOffWithWarning(t *testing.T) {
	303	+	root := t.TempDir()
	304	+	profileFastMode := true
	305	+	f := subagents.New(subagents.Config{
	306	+	Root: filepath.Join(root, "subagents"),
	307	+	RepoRoot: root,
	308	+	NewRunner: func(*subagents.Agent) subagents.Runner {
	309	+	return noopSupervisorRunner{}
	310	+	},
	311	+	})
	312	+	t.Cleanup(f.StopAll)
	313	+	tool := &SubagentSpawnTool{
	314	+	Supervisor: f,
	315	+	Enabled: func() bool { return true },
	316	+	ResolveSubagent: func(name string) (*subagents.Profile, error) {
	317	+	if name != "fast-worker" {
	318	+	return nil, nil
	319	+	}
	320	+	return &subagents.Profile{Name: name, FastMode: &profileFastMode}, nil
	321	+	},
	322	+	}
	323	+
	324	+	res, err := tool.Execute(context.Background(), json.RawMessage(`{"task":"review auth","agent":"fast-worker"}`), nil)
	325	+	if err != nil {
	326	+	t.Fatal(err)
	327	+	}
	328	+	if res.IsError {
	329	+	t.Fatalf("unexpected tool error: %s", textResult(res.Content))
	330	+	}
	331	+	agents := f.List()
	332	+	if len(agents) != 1 \|\| !agents[0].FastMode {
	333	+	t.Fatalf("agent fast mode = %#v, want enabled by profile", agents)
	334	+	}
	335	+	if got := res.Details.(map[string]any)["fast_mode"]; got != true {
	336	+	t.Fatalf("fast_mode detail = %v, want true", got)
	337	+	}
	338	+	if text := textResult(res.Content); !strings.Contains(text, "warning: subagent profile has fast mode enabled, overriding global fast mode off") {
	339	+	t.Fatalf("spawn result missing profile override warning:\n%s", text)
	340	+	}
	341	+	}
	342	+
302	343		func TestSubagentSpawnUsesProfileReasoningWhenOmitted(t *testing.T) {
303	344		tool := &SubagentSpawnTool{
304	345		Supervisor: newTestSupervisor(t),


@@ -299,6 +299,47 @@ func TestSubagentSpawnAppliesProfileFastModeRestriction(t *testing.T) {
299	}	299		}
300	}	300		}
301		301
		302	+	func TestSubagentSpawnProfileFastModeOverridesGlobalOffWithWarning(t *testing.T) {
		303	+	root := t.TempDir()
		304	+	profileFastMode := true
		305	+	f := subagents.New(subagents.Config{
		306	+	Root: filepath.Join(root, "subagents"),
		307	+	RepoRoot: root,
		308	+	NewRunner: func(*subagents.Agent) subagents.Runner {
		309	+	return noopSupervisorRunner{}
		310	+	},
		311	+	})
		312	+	t.Cleanup(f.StopAll)
		313	+	tool := &SubagentSpawnTool{
		314	+	Supervisor: f,
		315	+	Enabled: func() bool { return true },
		316	+	ResolveSubagent: func(name string) (*subagents.Profile, error) {
		317	+	if name != "fast-worker" {
		318	+	return nil, nil
		319	+	}
		320	+	return &subagents.Profile{Name: name, FastMode: &profileFastMode}, nil
		321	+	},
		322	+	}
		323	+
		324	+	res, err := tool.Execute(context.Background(), json.RawMessage(`{"task":"review auth","agent":"fast-worker"}`), nil)
		325	+	if err != nil {
		326	+	t.Fatal(err)
		327	+	}
		328	+	if res.IsError {
		329	+	t.Fatalf("unexpected tool error: %s", textResult(res.Content))
		330	+	}
		331	+	agents := f.List()
		332	+	if len(agents) != 1 \|\| !agents[0].FastMode {
		333	+	t.Fatalf("agent fast mode = %#v, want enabled by profile", agents)
		334	+	}
		335	+	if got := res.Details.(map[string]any)["fast_mode"]; got != true {
		336	+	t.Fatalf("fast_mode detail = %v, want true", got)
		337	+	}
		338	+	if text := textResult(res.Content); !strings.Contains(text, "warning: subagent profile has fast mode enabled, overriding global fast mode off") {
		339	+	t.Fatalf("spawn result missing profile override warning:\n%s", text)
		340	+	}
		341	+	}
		342	+
302	func TestSubagentSpawnUsesProfileReasoningWhenOmitted(t *testing.T) {	343		func TestSubagentSpawnUsesProfileReasoningWhenOmitted(t *testing.T) {
303	tool := &SubagentSpawnTool{	344		tool := &SubagentSpawnTool{
304	Supervisor: newTestSupervisor(t),	345		Supervisor: newTestSupervisor(t),