Lookback Tools
Automatic detection
You can simply mention @Hana and describe your request. If the intent is clear, she will automatically run the relevant lookback workflow for you.
What it does
Lookback is for time-bounded chat-history retrieval.
When To Use Lookback vs Other Flows
- Use Lookback for recent chat history analysis.
- Use Memory for long-lived knowledge retrieval.
- Use Report Groups for structured update streams.
Supported operations/arguments
| Operation | Invocation Keywords | Description | Supported arguments |
|---|---|---|---|
| Summarize across spaces | lookback all spaces, summarize all spaces | Summary of messages across spaces in a time window (up to 7 days). | start_timestamp, end_timestamp |
| Lookback in current conversation | lookback, review | Analyze current conversation history in a time window. | start_timestamp, end_timestamp |
| List chat spaces | list spaces, which spaces | List spaces where Hana is available. | none |
| Fetch space messages | messages from space, fetch space messages | Retrieve messages for one space in a time window. | space_id, start_timestamp, end_timestamp |
| Evidence search | find evidence, who said, when did we mention | Citation-focused retrieval from eligible workspace sources. | query, people[], sources[], start_timestamp, end_timestamp, space_id, max_results |
| List org members | list members, find teammate | List members with optional filter. | search_query, max_results |
| List available capabilities | available tools, what can you do | Show currently available Hana capability groups. | none |
| List recent invocations | recent invocations | Show recent user invocations when enabled. | max_results |
| Fetch memory context | recall from memory | Pull additional memory context when chat context is insufficient. | search_query, additional_queries[], force_refresh |
| Fetch online context | search web, latest online info | Pull fresh online context for up-to-date public information. | search_query, additional_queries[], force_refresh |
Invocation examples
lookbacksummarizegroup by ownersince Monday
@Hana lookback summarize key decisions in this space since Monday.
@Hana lookback list blockers from today 9am-5pm grouped by owner.
@Hana lookback extract action items from this thread in the last 48 hours.
@Hana list spaces where you are available and share the engineering space_id.
@Hana show my recent invocations from this week.
@Hana find evidence for "security review approved" in this space during the last 30 days.
Quick Clarity Rules
- Be explicit about time windows.
- Ask one retrieval objective per prompt.
- Specify output format (
table,group by owner,only unresolved).
Troubleshooting
- Busy spaces: narrow time window/thread.
- Weak output: include scope + time + format in one line.
See also
When to use
Use when you need evidence, decisions, blockers, or action items from chat history and invocation history.
Permissions/limits
- Search scope depends on accessible spaces/threads.
- Use explicit time windows to avoid ambiguous retrieval.
High-signal invocation
@Hana lookback summarize decisions and action items in this space from Monday 9 AM to Friday 6 PM, grouped by owner.
Edge-case invocation
@Hana find evidence for "security sign-off approved" in this thread during the last 30 days and cite matching messages.