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Agent progress trace vs Agent plan preview vs Streaming response vs Activity log vs Progress bar vs Human approval gate

Choose agent progress trace when an agent run has started and users need live multi-step agent execution monitoring with an ordered trace of queued, active, completed, blocked, retrying, failed, skipped, cancelled, and final run states.

Decision dimensions

Dimension Agent progress traceAgent plan previewStreaming responseActivity logProgress barHuman approval gate
UI or UX UI + UX - Live execution trace for an AI agent or automation run after work has startedUI + UX - Pre-execution preview of an AI agent's proposed multi-step plan, tools, data access, and expected outputsUI + UX - Incremental generated-output surface that renders response chunks before final completionUI + UX - Searchable and exportable record of system, user, or administrative eventsUI + UX - Measurable system-operation progress indicatorUI + UX - Runtime checkpoint that pauses AI or automation until an eligible human authorizes the next step
UI guidance Render an agent progress trace as a live, ordered run timeline with run ID, plan version, current step, queued steps, active tool or task, elapsed time, last event time, step status, blocked gates, retry state, and final outcome.Render agent plan preview as a pre-run plan with objective, ordered steps, planned tools, data sources, permissions, assumptions, dependencies, approval gates, expected outputs, and controls to edit, approve, run, save, or cancel.Render streamed output with a visible generation state, partial-answer label, stop control, final-complete state, and clear distinction between text that is still arriving and content that has passed final citation, safety, tool, or format checks.Render activity logs as evidence-oriented records with event time, actor, action, object, source system, scope, result, and technical context such as IP address or location when available.Show a labeled bar with a track, filled value, and nearby helper text that reports the measurable unit such as percent, bytes, rows, files, records, or stages.Render a human approval gate as a paused automation checkpoint with the proposed action, tool or workflow step, triggering rule, risk level, payload snapshot, requester or agent, approver eligibility, timeout, and explicit approve, reject, edit, cancel, or bypass controls.
UX guidance Use agent progress trace when an AI agent or automation has started multi-step work and users need to monitor progress, intervene on stalls or gates, understand partial completion, and know whether the reviewed plan is still being followed.Use agent plan preview when users need to understand and shape what an AI agent will do before it starts calling tools, changing records, sending messages, spending budget, or making external side effects.Use a streaming response when showing partial generated output helps users start reading or monitoring work before the model finishes, and when the product can explain that early chunks may still change, be filtered, or lack final sources.Use activity log when users need to investigate, audit, verify, or troubleshoot actions across accounts, objects, systems, settings, or security boundaries.Use a progress bar when the system can honestly report movement toward a known finish and users need to decide whether to wait, cancel, retry, continue elsewhere, or return later.Use human approval gate when automation is ready to act but policy, risk, confidence, cost, access, publication, deployment, customer impact, or legal consequence requires a human decision before execution continues.
Good UI An account research agent trace shows Run A-204, reviewed plan P-18, completed CRM lookup, active policy search, queued draft email, approval gate pending before send, elapsed time, and a View tool details control.A sales assistant previews a six-step account-research plan with CRM lookup, web search, draft email, approval gate before send, estimated sources, and editable recipient scope.A policy assistant shows Answer generating, streams paragraphs into a stable answer region, marks citations pending, exposes Stop generation, then changes to Complete when citations and safety checks finish.An organization audit log table shows timestamp, actor, action, target object, app, IP address, result, and a Details drawer with before and after fields.A document upload card says Uploading evidence.zip, shows 64%, 32 of 50 MB, a Cancel action, and keeps the rest of the form usable.An AI support agent pauses before issuing a refund, shows the proposed amount, customer, policy match, confidence, source grounding, approver role, timeout, Approve refund, Edit amount, Reject, and Stop run controls.
Bad UI A spinner says Working on it while an agent calls several tools with no step identity, elapsed time, blocked state, or recovery path.The UI says I have a plan and immediately starts executing without showing steps, tools, data access, or external side effects.A generated answer appears word by word with no partial label, no stop control, and a Copy button that looks ready before sources arrive.A page titled Activity shows vague entries such as Changed settings with no actor, target, timestamp, or source.A blue bar fills across the top of the page with no label, no percent, and no affected object.A banner says Human approval needed but does not show the tool call, payload, approver, timeout, or resume consequence.
Good UX A user watches the active step move from searching policies to drafting the email, opens the blocked permission item, grants access, and sees the run continue from the same step.A manager removes the Send email step, narrows the data source to approved knowledge, approves the remaining plan, and sees execution start from the revised version.A user sees the first-token state quickly, reads early outline bullets while the answer continues, stops generation after enough detail, and sees the result labelled Partial with Continue and Regenerate options.An admin filters to failed SSO events, expands one entry, copies the event ID, exports the filtered range, and sees that records older than 180 days require a different archive.A user uploads evidence.zip, sees progress move from 12% to 64%, cancels before commit, retries after a network error, and gets a completed receipt only after server processing succeeds.A billing lead opens the paused refund gate, sees that the amount is under policy but source grounding is partial, edits the refund to the verified amount, approves, and the agent resumes only that step.
Bad UX Users cannot tell whether the agent is stuck, waiting for approval, or finished because all states use the same animated progress label.Users approve a plan that says Research account but the agent also updates the opportunity stage.A user copies an early legal recommendation before the final paragraph reverses the conclusion after a tool result arrives.A user marks a notification read and the corresponding activity evidence disappears from the only log.A fake progress bar inches to 99% for minutes with no elapsed time, cancel, retry, or background option.A human approves a stale agent action from email and the agent applies it to a different customer state.
Best fit An agent or automation run has started and spans multiple steps, tools, gates, or side effects.An AI agent or automation can show a proposed multi-step plan before execution.Generated text or structured content can be read or monitored before completion.Users need to inspect recorded user, admin, system, security, or integration events.A system operation has a measurable total or bounded progress value.An AI agent, workflow, deployment, or automation is ready to perform a high-impact step and must pause for human authorization.
Avoid when Execution has not started and users need to inspect or edit a proposed plan.The system cannot generate a reliable plan before execution.Intermediate chunks may expose unsafe, private, or misleading content.The goal is only to show a readable milestone history for one case or process.Progress cannot be measured or would be guessed.The action has already happened and users only need an audit log.
Required state Run started state tied to run ID, plan version, objective, and user who started the run.Draft plan state with objective, ordered steps, planned tools, and expected output.Queued or receiving state before first output arrives.Default log state with event records, result count, visible timezone, retention window, and permission scope.Idle state before the operation starts.Paused gate state with proposed action, payload snapshot, reason for gate, and run context.
Accessibility burden Expose trace status, run ID, current step, elapsed time, blocked state, final outcome, and details availability as text.Expose objective, plan version, step order, step status, tool, data access, side effect, and expected output as text.Expose stream milestones such as started, still generating, stopped, failed, citation ready, and complete as status messages.Use table or structured list semantics so actor, action, object, timestamp, result, and scope are perceivable together.Provide an accessible name that identifies the operation and affected object.Expose gate status, proposed action, target, payload summary, risk, approver rule, timeout, and current run state as text.
Common misuse Using one spinner or vague Thinking label for a multi-step agent run.Showing a vague plan summary while hiding planned tool calls, data access, and side effects.Showing a blinking cursor with no state, stop control, or elapsed feedback.Calling a social feed or notification drawer an activity log without event evidence.Fabricating progress values just to make users feel movement.Showing Approve without the exact action, payload, target, risk, or resume consequence.

Agent progress trace

UI or UX
UI + UX - Live execution trace for an AI agent or automation run after work has started
UI guidance
Render an agent progress trace as a live, ordered run timeline with run ID, plan version, current step, queued steps, active tool or task, elapsed time, last event time, step status, blocked gates, retry state, and final outcome.
UX guidance
Use agent progress trace when an AI agent or automation has started multi-step work and users need to monitor progress, intervene on stalls or gates, understand partial completion, and know whether the reviewed plan is still being followed.
Good UI
An account research agent trace shows Run A-204, reviewed plan P-18, completed CRM lookup, active policy search, queued draft email, approval gate pending before send, elapsed time, and a View tool details control.
Bad UI
A spinner says Working on it while an agent calls several tools with no step identity, elapsed time, blocked state, or recovery path.
Good UX
A user watches the active step move from searching policies to drafting the email, opens the blocked permission item, grants access, and sees the run continue from the same step.
Bad UX
Users cannot tell whether the agent is stuck, waiting for approval, or finished because all states use the same animated progress label.
Best fit
An agent or automation run has started and spans multiple steps, tools, gates, or side effects.
Avoid when
Execution has not started and users need to inspect or edit a proposed plan.
Required state
Run started state tied to run ID, plan version, objective, and user who started the run.
Accessibility burden
Expose trace status, run ID, current step, elapsed time, blocked state, final outcome, and details availability as text.
Common misuse
Using one spinner or vague Thinking label for a multi-step agent run.

Agent plan preview

UI or UX
UI + UX - Pre-execution preview of an AI agent's proposed multi-step plan, tools, data access, and expected outputs
UI guidance
Render agent plan preview as a pre-run plan with objective, ordered steps, planned tools, data sources, permissions, assumptions, dependencies, approval gates, expected outputs, and controls to edit, approve, run, save, or cancel.
UX guidance
Use agent plan preview when users need to understand and shape what an AI agent will do before it starts calling tools, changing records, sending messages, spending budget, or making external side effects.
Good UI
A sales assistant previews a six-step account-research plan with CRM lookup, web search, draft email, approval gate before send, estimated sources, and editable recipient scope.
Bad UI
The UI says I have a plan and immediately starts executing without showing steps, tools, data access, or external side effects.
Good UX
A manager removes the Send email step, narrows the data source to approved knowledge, approves the remaining plan, and sees execution start from the revised version.
Bad UX
Users approve a plan that says Research account but the agent also updates the opportunity stage.
Best fit
An AI agent or automation can show a proposed multi-step plan before execution.
Avoid when
The system cannot generate a reliable plan before execution.
Required state
Draft plan state with objective, ordered steps, planned tools, and expected output.
Accessibility burden
Expose objective, plan version, step order, step status, tool, data access, side effect, and expected output as text.
Common misuse
Showing a vague plan summary while hiding planned tool calls, data access, and side effects.

Streaming response

UI or UX
UI + UX - Incremental generated-output surface that renders response chunks before final completion
UI guidance
Render streamed output with a visible generation state, partial-answer label, stop control, final-complete state, and clear distinction between text that is still arriving and content that has passed final citation, safety, tool, or format checks.
UX guidance
Use a streaming response when showing partial generated output helps users start reading or monitoring work before the model finishes, and when the product can explain that early chunks may still change, be filtered, or lack final sources.
Good UI
A policy assistant shows Answer generating, streams paragraphs into a stable answer region, marks citations pending, exposes Stop generation, then changes to Complete when citations and safety checks finish.
Bad UI
A generated answer appears word by word with no partial label, no stop control, and a Copy button that looks ready before sources arrive.
Good UX
A user sees the first-token state quickly, reads early outline bullets while the answer continues, stops generation after enough detail, and sees the result labelled Partial with Continue and Regenerate options.
Bad UX
A user copies an early legal recommendation before the final paragraph reverses the conclusion after a tool result arrives.
Best fit
Generated text or structured content can be read or monitored before completion.
Avoid when
Intermediate chunks may expose unsafe, private, or misleading content.
Required state
Queued or receiving state before first output arrives.
Accessibility burden
Expose stream milestones such as started, still generating, stopped, failed, citation ready, and complete as status messages.
Common misuse
Showing a blinking cursor with no state, stop control, or elapsed feedback.

Activity log

UI or UX
UI + UX - Searchable and exportable record of system, user, or administrative events
UI guidance
Render activity logs as evidence-oriented records with event time, actor, action, object, source system, scope, result, and technical context such as IP address or location when available.
UX guidance
Use activity log when users need to investigate, audit, verify, or troubleshoot actions across accounts, objects, systems, settings, or security boundaries.
Good UI
An organization audit log table shows timestamp, actor, action, target object, app, IP address, result, and a Details drawer with before and after fields.
Bad UI
A page titled Activity shows vague entries such as Changed settings with no actor, target, timestamp, or source.
Good UX
An admin filters to failed SSO events, expands one entry, copies the event ID, exports the filtered range, and sees that records older than 180 days require a different archive.
Bad UX
A user marks a notification read and the corresponding activity evidence disappears from the only log.
Best fit
Users need to inspect recorded user, admin, system, security, or integration events.
Avoid when
The goal is only to show a readable milestone history for one case or process.
Required state
Default log state with event records, result count, visible timezone, retention window, and permission scope.
Accessibility burden
Use table or structured list semantics so actor, action, object, timestamp, result, and scope are perceivable together.
Common misuse
Calling a social feed or notification drawer an activity log without event evidence.

Progress bar

UI or UX
UI + UX - Measurable system-operation progress indicator
UI guidance
Show a labeled bar with a track, filled value, and nearby helper text that reports the measurable unit such as percent, bytes, rows, files, records, or stages.
UX guidance
Use a progress bar when the system can honestly report movement toward a known finish and users need to decide whether to wait, cancel, retry, continue elsewhere, or return later.
Good UI
A document upload card says Uploading evidence.zip, shows 64%, 32 of 50 MB, a Cancel action, and keeps the rest of the form usable.
Bad UI
A blue bar fills across the top of the page with no label, no percent, and no affected object.
Good UX
A user uploads evidence.zip, sees progress move from 12% to 64%, cancels before commit, retries after a network error, and gets a completed receipt only after server processing succeeds.
Bad UX
A fake progress bar inches to 99% for minutes with no elapsed time, cancel, retry, or background option.
Best fit
A system operation has a measurable total or bounded progress value.
Avoid when
Progress cannot be measured or would be guessed.
Required state
Idle state before the operation starts.
Accessibility burden
Provide an accessible name that identifies the operation and affected object.
Common misuse
Fabricating progress values just to make users feel movement.

Human approval gate

UI or UX
UI + UX - Runtime checkpoint that pauses AI or automation until an eligible human authorizes the next step
UI guidance
Render a human approval gate as a paused automation checkpoint with the proposed action, tool or workflow step, triggering rule, risk level, payload snapshot, requester or agent, approver eligibility, timeout, and explicit approve, reject, edit, cancel, or bypass controls.
UX guidance
Use human approval gate when automation is ready to act but policy, risk, confidence, cost, access, publication, deployment, customer impact, or legal consequence requires a human decision before execution continues.
Good UI
An AI support agent pauses before issuing a refund, shows the proposed amount, customer, policy match, confidence, source grounding, approver role, timeout, Approve refund, Edit amount, Reject, and Stop run controls.
Bad UI
A banner says Human approval needed but does not show the tool call, payload, approver, timeout, or resume consequence.
Good UX
A billing lead opens the paused refund gate, sees that the amount is under policy but source grounding is partial, edits the refund to the verified amount, approves, and the agent resumes only that step.
Bad UX
A human approves a stale agent action from email and the agent applies it to a different customer state.
Best fit
An AI agent, workflow, deployment, or automation is ready to perform a high-impact step and must pause for human authorization.
Avoid when
The action has already happened and users only need an audit log.
Required state
Paused gate state with proposed action, payload snapshot, reason for gate, and run context.
Accessibility burden
Expose gate status, proposed action, target, payload summary, risk, approver rule, timeout, and current run state as text.
Common misuse
Showing Approve without the exact action, payload, target, risk, or resume consequence.
Decision rules
  • Choose agent progress trace when an agent run has started and users need live multi-step agent execution monitoring with an ordered trace of queued, active, completed, blocked, retrying, failed, skipped, cancelled, and final run states.
  • Choose agent plan preview when users need to inspect objective, proposed steps, planned tools, data access, risks, approval gates, and expected outputs before execution starts.
  • Choose streaming response when the main user-visible work is generated output chunks arriving over time, not a run-level timeline of multiple steps and tools.
  • Choose activity log when the task is retained evidence, investigation, export, or audit after the run, not live monitoring or intervention.
  • Choose progress bar when one measurable bounded work operation has honest percent, bytes, rows, items, or stages.
  • Choose human approval gate when execution is paused at one paused authorization checkpoint and an eligible human must approve, reject, edit, or bypass before that step resumes.
  • The agent progress trace should show run ID, plan version, current step, elapsed time, last event time, active tool or task, queued next step, retry attempt, blocker, approval wait, cancellation, and final outcome.
  • The trace should link to tool-use visibility for exact tool input, tool output, permission, and payload details, but it should not dump raw tool logs as the primary progress surface.
  • The trace should hand off to activity log or audit trail after completion while preserving the connection to the reviewed plan version and final run outcome.
  • Do not use fake percent or a progress bar percentage for an agent trace unless the run has a real bounded total; use step state, elapsed time, and live milestones instead.
  • Mark retry attempts and duplicate events explicitly so completed steps do not appear to run twice.
  • Do not label generated answer streaming, post-hoc audit rows, or pre-run plan text as an agent progress trace.
Inspect live examples
Failure modes
  • A multi-step agent run shows only a vague spinner or Thinking label.
  • A progress trace hides active tool, blocked permission, human approval gate, retry attempt, failed step, skipped step, or final outcome.
  • Raw tool JSON is exposed as progress and leaks private payloads or implementation details.
  • A trace appears complete while queued side-effect steps or approval gates remain unresolved.
  • Retries and duplicate events make users think completed steps ran twice.
  • The final audit record cannot be tied back to run ID, plan version, and trace outcome.