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bradygasterCopilot
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feat: add feed sorting, squad filtering, and comment stats
Add sort controls (Latest / Most Discussed) and squad filter dropdown to the discovery feed. Sort and filter state is carried via query string parameters so URLs are shareable. - Sort by newest (default) or by comment count descending - Filter by squad via dropdown, preserves active sort - Show total comments in header stats alongside artifacts and squads - Use Primer CSS BtnGroup for sort toggles, form-select for squad filter Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Lines changed: 93 additions & 6 deletions

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‎.squad/agents/fenster/history.md‎

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@@ -787,6 +787,13 @@ Showed complete flow: Fenster publishes → Verbal sees in feed (SSE) → reacts
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- API design for agent social networks: artifact-first (decisions, learnings, code) vs. post-first (Twitter-style)
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- JWT + RS256: Squads sign tokens with private key, network verifies with public key from /.well-known/jwks.json
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- Cursor-based pagination: Encode last_item_id + sort_value + query_fingerprint for stable pagination
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### Feed sorting & filtering (Index page)
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- `ListArtifactsAsync(Guid? squadId)` already supports server-side squad filtering — no need to filter in-memory
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- Primer CSS `BtnGroup` with `.selected` class is the right pattern for sort toggles; works cleanly with server-rendered links
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- Razor `selected` attribute gotcha: `selected="@(false)"` still renders as selected in HTML — must conditionally render the entire attribute via if/else
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- Query string params (`?sort=comments&squad={id}`) keep URLs shareable and compose well with form GET submissions
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- Comment counts need to be computed before sorting when "Most Discussed" sort is active — order of operations matters
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- SSE fanout with Redis pub/sub: Artifact published → Redis PUBLISH → all server instances → SSE to connected clients
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- Feed algorithm: Weighted blend of followed agents (1.0), trending in expertise (0.85), similar squads (0.7), adoptions (0.6)
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- Adoption tracking as reputation signal: Better than likes — proves you actually used the knowledge

‎src/SquadPlaces.Web/Pages/Index.cshtml‎

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@@ -13,11 +13,63 @@
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<span class="Counter mr-2">@Model.TotalArtifacts</span>
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<span class="color-fg-muted mr-3">artifacts ·</span>
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<span class="Counter mr-2">@Model.TotalSquads</span>
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<span class="color-fg-muted mr-3">squads</span>
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<span class="color-fg-muted mr-3">squads ·</span>
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<span class="Counter mr-2">@Model.TotalComments</span>
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<span class="color-fg-muted mr-3">comments</span>
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<span class="Label color-fg-muted">read-only</span>
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</div>
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</div>
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@{
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string BuildFeedUrl(string? sort = null, Guid? squad = null)
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{
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var qs = new List<string>();
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var effectiveSort = sort ?? Model.ActiveSort;
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var effectiveSquad = squad.HasValue ? squad : Model.SquadFilter;
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if (effectiveSort != "latest")
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qs.Add($"sort={effectiveSort}");
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if (effectiveSquad.HasValue)
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qs.Add($"squad={effectiveSquad.Value}");
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return qs.Count > 0 ? $"/?{string.Join("&", qs)}" : "/";
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}
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}
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<div class="d-flex flex-items-center flex-justify-between mb-4 flex-wrap" style="gap: 0.5rem;">
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<div class="BtnGroup">
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<a href="@BuildFeedUrl(sort: "latest")"
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class="BtnGroup-item btn btn-sm @(Model.ActiveSort == "latest" ? "selected" : "")">
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🕐 Latest
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</a>
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<a href="@BuildFeedUrl(sort: "comments")"
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class="BtnGroup-item btn btn-sm @(Model.ActiveSort == "comments" ? "selected" : "")">
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💬 Most Discussed
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</a>
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</div>
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<form method="get" class="d-flex flex-items-center">
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@if (Model.ActiveSort != "latest")
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{
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<input type="hidden" name="sort" value="@Model.ActiveSort" />
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}
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<select name="squad" class="form-select form-select-sm" onchange="this.form.submit()">
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<option value="">All Squads</option>
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@foreach (var s in Model.AllSquads.OrderBy(x => x.Name))
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{
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if (Model.SquadFilter == s.Id)
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{
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<option value="@s.Id" selected>@s.Name</option>
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}
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else
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{
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<option value="@s.Id">@s.Name</option>
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}
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}
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</select>
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</form>
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</div>
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@if (Model.Artifacts.Count == 0)
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{
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<div class="blankslate">

‎src/SquadPlaces.Web/Pages/Index.cshtml.cs‎

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@@ -1,3 +1,4 @@
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using SquadPlaces.Data;
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using SquadPlaces.Data.Models;
@@ -9,25 +10,52 @@ public class IndexModel(IBlobStorageService storage) : PageModel
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public List<KnowledgeArtifact> Artifacts { get; set; } = [];
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public Dictionary<Guid, string> SquadNames { get; set; } = [];
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public Dictionary<Guid, int> CommentCounts { get; set; } = [];
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public List<Squad> AllSquads { get; set; } = [];
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public int TotalArtifacts { get; set; }
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public int TotalSquads { get; set; }
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public int TotalComments { get; set; }
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[BindProperty(SupportsGet = true)]
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[FromQuery(Name = "sort")]
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public string? Sort { get; set; }
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[BindProperty(SupportsGet = true)]
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[FromQuery(Name = "squad")]
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public Guid? SquadFilter { get; set; }
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public string ActiveSort => string.IsNullOrEmpty(Sort) ? "latest" : Sort;
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public async Task OnGetAsync()
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{
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var allArtifacts = await storage.ListArtifactsAsync();
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Artifacts = allArtifacts.Take(50).ToList();
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TotalArtifacts = allArtifacts.Count;
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var allSquads = await storage.ListSquadsAsync();
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AllSquads = allSquads;
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TotalSquads = allSquads.Count;
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SquadNames = allSquads.ToDictionary(s => s.Id, s => s.Name);
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var commentTasks = Artifacts.Select(async a =>
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var allArtifacts = SquadFilter.HasValue
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? await storage.ListArtifactsAsync(SquadFilter.Value)
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: await storage.ListArtifactsAsync();
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TotalArtifacts = allArtifacts.Count;
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// Compute comment counts for visible artifacts
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var commentTasks = allArtifacts.Select(async a =>
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{
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var comments = await storage.ListCommentsAsync(a.Id);
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return (a.Id, Count: comments.Count);
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});
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var results = await Task.WhenAll(commentTasks);
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CommentCounts = results.ToDictionary(r => r.Id, r => r.Count);
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TotalComments = CommentCounts.Values.Sum();
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// Apply sorting
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var sorted = ActiveSort switch
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{
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"comments" => allArtifacts.OrderByDescending(a => CommentCounts.GetValueOrDefault(a.Id, 0))
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.ThenByDescending(a => a.CreatedAt),
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_ => allArtifacts.OrderByDescending(a => a.CreatedAt),
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};
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Artifacts = sorted.Take(50).ToList();
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}
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}

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