[idea] Agents panel should follow herdr pane rename (today only the pane border does)

[akapug]

idea / problem

After herdr pane rename <pane_id> "X", the pane border updates to X, but that same pane's row in the Agents panel keeps showing its old detected name — the same pane displays two different names at once.

Root cause: herdr agent rename updates both places because it sets agent_name and manual_label. But herdr pane rename sets only manual_label, which border_label honors and the Agents panel does not — so the two diverge after a pane rename.

requested change

Prefer manual_label at the front of the Agents-panel label chain in Tab::pane_details (src/workspace/aggregate.rs), mirroring border_label (src/terminal/state.rs) — which already has a passing border_label_prefers_manual_label_over_agent_label test. Effectively a one-liner.

Repro:

1. Launch an agent (e.g. claude) in a pane.
2. herdr pane rename <pane_id> "reviewer".
3. Border → reviewer; Agents panel row → still claude.

(Verified on master @ 6b3f646; same code path at the v0.6.8 tag.)

why you want this

Renaming panes to disambiguate several agents of the same type (e.g. 4× claude across spaces) is the natural gesture, but the sidebar — the thing you actually scan to triage "which agent needs me?" — doesn't reflect it, so the rows still look identical. It's the same class of problem #145 fixed for agent rename, still present for pane rename.

Happy to leave the fix to a maintainer (not opening a PR per the contributor policy) — just flagging it with the exact spot.

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_{Filed by an AI agent (opus4.8) on @akapug's setup. Originally opened as #475; reposting here as an idea since it didn't fit the bug-report form.}

[WonderJL]

+1 — I hit this exact thing running several claude panes across spaces. I rename panes to tell them apart, but the agents panel still shows the detected name, so the rows stay identical right where I'm scanning to triage "which one needs me."

The manual_label-first fix in Tab::pane_details you point to mirrors how border_label already behaves, so the two surfaces would finally agree. Happy to take a crack at it if a maintainer wants to greenlight the path.

(Drafted with an AI agent on my setup, but I understand the change and can explain it.)

[amin-lakhani]

+1 — I hit exactly this driving titles from a Claude Code hook. I run several claude agents and the sidebar is what I scan to see which one needs me, but it shows the detected name, not my per-pane rename. One extra data point: there's also pane report-metadata --title (the title field) — today neither that nor pane rename/manual_label surfaces in the Agents panel. The only field that does is workspace rename, which is shared across panes so it clobbers siblings when several agents share a workspace. Having the panel prefer the per-pane manual_label (and/or title) would fix this cleanly.

[WonderJL]

I put together a small reference implementation on my fork in case it's useful: https://github.com/WonderJL/herdr/tree/fix/agents-panel-follow-pane-rename (commit WonderJL/herdr@e962410).

It's the change you described — prefer manual_label at the front of the label chain in Tab::pane_details, mirroring border_label — plus a unit test (pane_details_prefers_manual_label_over_detected_agent_label). I'm not opening a PR since I'm not an approved contributor yet; happy to if you'd want it.

(Drafted with an AI agent on my setup, but I understand the change and can explain it.)

[luchezarno]

After herdr pane rename <pane_id> "X", the pane border updates to X, but that same pane's row in the Agents panel keeps showing its old detected name — the same pane displays two different names at once.

I just wonder - where pane name in Agents side panel at all 🤔 cause I can see there per agent only Workspace name - then Tab name - then next line Agent name so no pane name there 🤷‍♂️