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webui/CHANGELOG.md
Nathan Esquenazi 30529e0002 docs: fix SPRINTS header and CHANGELOG footer to v0.25
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-03 12:10:29 -07:00

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Hermes Web UI -- Changelog

Living document. Updated at the end of every sprint. Repository: https://github.com/nesquena/hermes-webui


[v0.25] Sprint 23 -- Profile/Workspace/Model Coherence

April 3, 2026 | 423 tests

Features

  • Profile-local workspace storage. Each named profile now stores its own workspaces.json and last_workspace.txt under {profile_home}/webui_state/. Default profile continues using the global STATE_DIR for backward compat.
  • Profile switch returns defaults. POST /api/profile/switch response now includes default_model and default_workspace from the new profile's config.yaml, enabling one-round-trip state sync.
  • Session profile filter. Session sidebar filters to the active profile by default. "Show N from other profiles" toggle reveals sessions from all profiles, modeled on the existing archived toggle. Resets on profile switch.

Bug Fixes

  • Model picker ignores profile on switch. switchToProfile() now clears the hermes-webui-model localStorage key so the profile's default model applies instead of a stale preference from another profile.
  • Workspace list was global. Switching profiles no longer shows the wrong profile's workspaces.
  • DEFAULT_WORKSPACE was a boot-time singleton. Now resolved dynamically through _profile_default_workspace().
  • Session list showed all profiles. Now filtered to active profile.
  • switchToProfile() didn't refresh workspaces or sessions. Now refreshes workspace list, session list, and resets profile filter on switch.

Architecture

  • api/workspace.py rewritten with profile-aware path resolution.
  • api/profiles.py: switch_profile() returns default_model and default_workspace.
  • static/sessions.js: Profile filter with toggle UI.
  • static/panels.js: Full cascade refresh on profile switch.
  • 8 new tests in test_sprint23.py.

[v0.24] Sprint 22 -- Multi-Profile Support (Issue #28)

April 3, 2026 | 415 tests

Features

  • Profile picker (topbar). Purple-accented chip with SVG user icon. Click to open dropdown listing all profiles with gateway status dots (green = running), model info, and skill count. Click any profile to switch; "Manage profiles" link opens the sidebar panel.
  • Profiles management panel. New sidebar tab with full CRUD UI. Profile cards show name, model/provider, skill count, API key status, and gateway status badge. "Use" button switches profile, delete button removes non-default profiles (with confirmation).
  • Profile creation. "+ New profile" form with name validation ([a-z0-9_-]), optional "clone config from active" checkbox. Wraps the CLI's hermes_cli.profiles.create_profile().
  • Profile deletion. Confirm dialog. Auto-switches to default if deleting the active profile. Blocked while agent is running.
  • Seamless profile switching. No server restart. Profile switch updates HERMES_HOME, patches module-level caches in hermes-agent's skills_tool and cron/jobs, reloads .env API keys and config.yaml, refreshes the model dropdown, skills, memory, and cron panels.
  • Per-session profile tracking. profile field on Session records which profile was active at creation. Backward-compatible (null for old sessions).

Bug Fixes

  • Hardcoded ~/.hermes paths. Memory read/write and model discovery used hardcoded paths. Now resolved through get_active_hermes_home().
  • Module-level path caching. hermes-agent modules snapshot HERMES_HOME at import time. Profile switch now monkey-patches SKILLS_DIR, CRON_DIR, JOBS_FILE, OUTPUT_DIR so they track the active profile.

Architecture

  • New api/profiles.py: profile state management wrapping hermes_cli.profiles. Thread-safe (_profile_lock). Lazy imports avoid circular deps.
  • api/config.py: module-level cfg replaced with reloadable get_config() / reload_config(). Dynamic _get_config_path() resolves through profile.
  • api/streaming.py: HERMES_HOME added to env save/restore block.
  • Profile switch blocked while agent streams are active.
  • 5 new API endpoints: GET /api/profiles, GET /api/profile/active, POST /api/profile/switch, POST /api/profile/create, POST /api/profile/delete.
  • Zero modifications to hermes-agent code.

[v0.23] Sprint 21 -- Mobile Responsive + Docker

April 3, 2026 | 415 tests

Features

  • Mobile responsive layout (Issue #21). Full mobile experience with hamburger sidebar (slide-in overlay), bottom navigation bar (5-tab iOS pattern), and files slide-over panel. Touch targets minimum 44px. Composer positioned above bottom nav. Session clicks auto-close sidebar. Desktop layout completely unchanged — all mobile elements hidden via @media.
  • Docker support (Issue #7). Dockerfile (python:3.12-slim), docker-compose.yml with named volume for state persistence, optional ~/.hermes mount for agent features. Binds to 127.0.0.1 by default for security.

Bug Fixes (from review)

  • CSS cascade broke mobile slide-in. position:relative rules after the media query overrode position:fixed on mobile. Wrapped in @media(min-width:641px).
  • mobileSwitchPanel() always reopened sidebar. Chat tab now closes sidebar instead of reopening it over the main chat area.
  • Dockerfile missing pip install. Added pip install -r requirements.txt.
  • No .dockerignore. Added exclusions for .git, tests/, .env*.
  • docker-compose tilde expansion. Changed ~/.hermes default to ${HOME}/.hermes (Docker Compose doesn't shell-expand ~).

Architecture

  • Mobile navigation functions in boot.js: toggleMobileSidebar(), closeMobileSidebar(), toggleMobileFiles(), mobileSwitchPanel().
  • sessions.js: closeMobileSidebar() called after session click.
  • 69 new CSS lines in @media(max-width:640px) block.
  • New files: Dockerfile, docker-compose.yml, .dockerignore.

[v0.22] Sprint 20 -- Voice Input + Send Button Polish

April 3, 2026 | 415 tests

Features

  • Voice input via Web Speech API. Microphone button in the composer. Tap to start recording, tap again (or send) to stop. Live interim transcription appears in the textarea. Auto-stops after ~2s of silence. Final text stays editable before sending. Appends to existing textarea content rather than replacing it. Button hidden when browser doesn't support Web Speech API. No API keys, no external libraries, no server changes. Works in Chrome, Edge, Safari (partial). Firefox unsupported (button stays hidden).
  • Send button polish. Send button redesigned as a 34px icon-only circle with upward arrow SVG. Hidden by default — appears with pop-in spring animation when textarea has content or files are attached. Disappears on send or when content is cleared. Hidden while agent is responding. Blue fill (#7cb9ff) with glow, scale hover/active for tactile feedback.

Architecture

  • Voice input IIFE in boot.js: SpeechRecognition lifecycle with continuous=false, interimResults=true, error handling via showToast().
  • _prefix variable snapshots existing textarea content on recording start so dictation appends rather than overwrites.
  • btnSend.onclick stops active recognition before sending (send guard).
  • CSS: .mic-btn, .mic-btn.recording (red pulse), .mic-status, .mic-dot, @keyframes mic-pulse.
  • updateSendBtn() in ui.js tracks textarea content, pending files, and busy state. Hooked into setBusy(), renderTray(), autoResize(), and input event listener.
  • CSS: .send-btn redesigned (circle, glow), .send-btn.visible + @keyframes send-pop-in (spring animation).

Tests

  • 52 new tests in test_sprint20.py: voice input HTML, CSS, JS, append behaviour, error handling, regressions.
  • 33 new tests in test_sprint20b.py: send button HTML, CSS, JS, animation, visibility logic, regressions. Total: 415 tests.

[v0.21] Sprint 19 -- Auth + Security Hardening

April 3, 2026 | 328 tests

Features

  • Password authentication (Issue #23). Optional password auth, off by default. Enable via HERMES_WEBUI_PASSWORD env var or Settings panel. Password-only (single-user app). Signed HMAC HTTP-only cookie with 24h TTL. Minimal dark-themed login page at /login. API calls without auth return 401; page loads redirect. New api/auth.py module with hashing, verification, session management.
  • Security headers. All responses now include X-Content-Type-Options: nosniff, X-Frame-Options: DENY, Referrer-Policy: same-origin.
  • POST body size limit. Non-upload POST bodies capped at 20MB via read_body().
  • Settings panel additions. "Access Password" field and "Sign Out" button (only visible when auth is active).

Architecture

  • New api/auth.py: password hashing (SHA-256 + STATE_DIR salt), signed cookies, auth middleware, public path allowlist.
  • Auth check in server.py do_GET/do_POST before routing.
  • password_hash added to _SETTINGS_DEFAULTS.

Tests

  • 10 new tests in test_sprint19.py: auth status, login flow, security headers, cache-control, settings password field, request size limit. Total: 328 tests (328 passing).

[v0.20] Sprint 18 -- File Preview Auto-Close + Thinking Display + Workspace Tree

April 3, 2026 | 318 tests

Features

  • File preview auto-close on directory navigation. When viewing a file in the right panel and navigating directories (breadcrumbs, up button, folder clicks), the preview now automatically closes instead of showing stale content. clearPreview() extracted as named function and called from loadDir(). Unsaved preview edits prompt for confirmation before discarding.
  • Thinking/reasoning display. Assistant messages with structured content arrays containing type:'thinking' or type:'reasoning' blocks (Claude extended thinking, o3 reasoning) now render as collapsible gold-themed cards above the response text. Collapsed by default. Click the header to expand and see the model's reasoning process. Uses esc() on all content for XSS safety.
  • Workspace tree view (Issue #22). Directories expand/collapse in-place with toggle arrows. Single-click toggles a directory open/closed. Double-click navigates into it (breadcrumb view). Subdirectory contents fetched lazily from the API and cached in S._dirCache. Nesting depth shown via indentation. Empty directories show "(empty)" placeholder. Breadcrumb navigation still works alongside the tree view.

Bug Fixes

  • Stale tree cache on session switch. S._dirCache and S._expandedDirs are now cleared when navigating to the root directory, preventing session B from showing session A's cached file listings.
  • clearPreview() discards unsaved edits. Navigation now checks _previewDirty and prompts before discarding unsaved preview changes.

Architecture

  • clearPreview() extracted from inline handler to named function in boot.js.
  • Thinking card styles added to style.css (gold-themed, collapsible).
  • Tree toggle and empty-directory styles added to style.css.

[v0.19] Sprint 17 -- Workspace Polish + Slash Commands + Settings

April 3, 2026 | 318 tests

Features

  • Workspace breadcrumb navigation. Clicking into subdirectories now shows a breadcrumb path bar (e.g. ~ / src / components) with clickable segments to navigate back. An "up" button appears in the panel header when inside a subdirectory. File operations (rename, delete, new file/folder) stay in the current directory instead of jumping back to root. Foundation for Issue #22 (tree view).
  • Slash commands. Type / in the composer to see an autocomplete dropdown of built-in commands. New commands.js module with command registry. Built-in commands: /help, /clear, /model <name>, /workspace <name>, /new. Arrow keys navigate, Tab/Enter select, Escape closes. Unrecognized commands pass through to the agent normally.
  • Send key setting (Issue #26). New setting in Settings panel to choose between Enter (default) and Ctrl/Cmd+Enter as the send key. Persisted to settings.json via the existing settings API. Setting loads on boot. Server-side validation ensures only valid values (enter, ctrl+enter).

Architecture

  • New static/commands.js module (7th JS module): command registry, parser, autocomplete dropdown, and built-in command handlers.
  • send_key added to _SETTINGS_DEFAULTS in api/config.py with enum validation (_SETTINGS_ENUM_VALUES rejects unknown values server-side).
  • S.currentDir state tracking added to ui.js for workspace navigation.

Tests

  • 6 new tests in test_sprint17.py: send_key default, round-trip save with cleanup, invalid value rejection, unknown key ignored, commands.js served, workspace root listing. Total: 318 passed.

[v0.18.1] Safe HTML Rendering + Sprint 16 Tests

April 2, 2026 | 289 tests

Features

  • Safe HTML rendering in AI responses. AI models sometimes emit HTML tags (<strong>, <em>, <code>, <br>) in their responses. Previously these showed as literal escaped text. A new pre-pass in renderMd() converts safe HTML tags to markdown equivalents before the pipeline runs. Code blocks and backtick spans are stashed first so their content is never touched.
  • inlineMd() helper. New function for processing inline formatting inside list items, blockquotes, and headings. The old code called esc() directly, which escaped tags that had already been converted by the pre-pass.
  • Safety net. After the full pipeline, any HTML tags not in the output allowlist (SAFE_TAGS) are escaped via esc(). XSS fully blocked -- 7 attack vectors tested.
  • Active session gold style. Active session uses gold/amber (#e8a030) instead of blue, matching the logo gradient. Project border-left skipped when active (gold always wins).

Tests

  • 74 new tests in test_sprint16.py: static analysis (6), behavioral (10), exact regression (1), XSS security (7), edge cases (51). Total: 289 passed.

[v0.18] Sprint 16 -- Session Sidebar Visual Polish

April 2, 2026 | 237 tests

Features

  • SVG action icons. Replaced all emoji HTML entities (star, folder, box, duplicate, trash) with monochrome SVG line icons that inherit currentColor. Consistent rendering across macOS, Linux, and Windows. Defined in a top-level ICONS constant in sessions.js.
  • Action buttons overlay. All session action buttons (pin, move, archive, duplicate, trash) wrapped in a .session-actions container with position:absolute. Titles now use full available width instead of being truncated by invisible buttons. Actions appear on hover with a gradient fade from the right edge. Overlay auto-hides during inline rename via :has(.session-title-input).
  • Pin indicator. Small gold filled-star icon rendered inline before the title only when pinned. Unpinned sessions get full title width with zero space reservation.
  • Project border indicator. Sessions assigned to a project show a colored left border matching the project color, replacing the old always-visible blue folder button.

Bug Fixes

  • Session title truncation. Action icons reserved ~30px of space even when invisible, truncating titles. Fixed by overlay container approach.
  • Folder button felt sticky. Replaced .has-project persistent blue button with colored left border. Folder button now only appears in hover overlay.

[v0.17.3] Bug Fixes

April 2, 2026

Bug Fixes

  • NameError crash in model discovery. logger.debug() was called in the custom endpoint except block in config.py, but logger was never imported. Every failed custom endpoint fetch crashed with NameError, returning HTTP 500 for /api/models. Replaced with silent pass since unreachable endpoints are expected. (PR #24)
  • Project picker clipping and width. Picker was clipped by overflow:hidden on ancestor elements. Width calculation improved with dynamic sizing (min 160px, max 220px). Event listener close handler moved after DOM append to fix reference-before-definition. Reordered picker.remove() before removeEventListener for correct cleanup. (PR #25)

[v0.17.2] Model Update

April 2, 2026

Enhancements

  • GLM-5.1 added to Z.AI model list. New model available in the dropdown for Z.AI provider users. (Fixes #17)

[v0.17.1] Security + Bug Fixes

April 2, 2026 | 237 tests

Security

  • Path traversal in static file server. _serve_static() now sandboxes resolved paths inside static/ via .relative_to(). Previously GET /static/../../.hermes/config.yaml could expose API keys.
  • XSS in markdown renderer. All captured groups in bold, italic, headings, blockquotes, list items, table cells, and link labels now run through esc() before innerHTML insertion.
  • Skill category path traversal. Category param validated to reject / and .. to prevent writing outside ~/.hermes/skills/.
  • Debug endpoint locked to localhost. /api/approval/inject_test returns 404 to any non-loopback client.
  • CDN resources pinned with SRI hashes. PrismJS and Mermaid tags now have integrity + crossorigin attributes. Mermaid pinned to @10.9.3.
  • Project color CSS injection. Color field validated against ^#[0-9a-fA-F]{3,8}$ to prevent style.background injection.
  • Project name length limit. Capped at 128 chars, empty-after-strip rejected.

Bug Fixes

  • OpenRouter model routing regression. resolve_model_provider() was incorrectly stripping provider prefixes from OpenRouter model IDs (e.g. openai/gpt-5.4-mini became gpt-5.4-mini with provider openai), causing AIAgent to look for OPENAI_API_KEY and crash. Fix: only strip prefix when config.provider explicitly matches that direct-API provider.
  • Project picker invisible. Dropdown was clipped by .session-item overflow:hidden. Now appended to document.body with position:fixed.
  • Project picker stretched full width. Added max-width:220px; width:max-content to constrain the fixed-positioned picker.
  • No way to create project from picker. Added "+ New project" item at the bottom of the picker dropdown.
  • Folder button undiscoverable. Now shows persistently (blue, 60% opacity) when session belongs to a project.
  • Picker event listener leak. removeEventListener added to all picker item onclick handlers.
  • Redundant sys.path.insert calls removed. Two cron handler imports no longer prepend the agent dir (already on sys.path via config.py).

[v0.17] Sprint 15 -- Session Projects + Code Copy + Tool Card Toggle

April 1, 2026 | 237 tests

Features

  • Session projects. Named groups for organizing sessions. A project filter bar (subtle chips) sits between the search input and the session list. Each project has a name and color. Click a chip to filter; "All" shows everything. Create inline (+), rename (double-click), delete (right-click). Assign sessions via folder icon button with dropdown picker. Projects stored in projects.json. Session model gains project_id field. 5 new API endpoints.
  • Code block copy button. Every code block gets a "Copy" button in the language header bar (or top-right for plain blocks). Click copies to clipboard, shows "Copied!" for 1.5s.
  • Tool card expand/collapse. When a message has 2+ tool cards, "Expand all / Collapse all" toggle appears above the card group.

[v0.16.2] Model List Updates + base_url Passthrough

April 1, 2026 | 247 tests

Bug Fixes

  • MiniMax model list updated. Replaced stale ABAB 6.5 models with current MiniMax-M2.7, M2.7-highspeed, M2.5, M2.5-highspeed, M2.1 lineup matching hermes-agent upstream. (Fixes #6)
  • Z.AI/GLM model list updated. Replaced GLM-4 series with current GLM-5, GLM-5 Turbo, GLM-4.7, GLM-4.5, GLM-4.5 Flash lineup.
  • base_url passthrough to AIAgent. resolve_model_provider() now reads base_url from config.yaml and passes it to AIAgent, so providers with custom endpoints (MiniMax, Z.AI, local LLMs) route to the correct API.

[v0.16.1] Community Fixes -- Mobile + Auth + Provider Routing

April 1, 2026 | 247 tests

Community contributions from @deboste, reviewed and refined.

Bug Fixes

  • Mobile responsive layout. Comprehensive @media(max-width:640px) rules for topbar, messages, composer, tool cards, approval cards, and settings modal. Uses 100dvh with 100vh fallback to fix composer cutoff on mobile browsers. Textarea font-size:16px prevents iOS/Android auto-zoom on focus.
  • Reverse proxy basic auth support. All fetch() and EventSource URLs now constructed via new URL(path, location.origin) to strip embedded credentials per Fetch spec. credentials:'include' on fetch, withCredentials:true on EventSource ensure auth headers are forwarded through reverse proxies.
  • Model provider routing. New resolve_model_provider() helper in api/config.py strips provider prefix from dropdown model IDs (e.g. anthropic/claude-sonnet-4.6claude-sonnet-4.6) and passes the correct provider to AIAgent. Handles cross-provider selection by matching against known direct-API providers.

[v0.16] Sprint 14 -- Visual Polish + Workspace Ops + Session Organization

March 30, 2026 | 233 tests

Features

  • Mermaid diagram rendering. Code blocks tagged mermaid render as diagrams inline. Mermaid.js loaded lazily from CDN on first encounter. Dark theme with matching colors. Falls back to code block on parse error.
  • Message timestamps. Subtle HH:MM time next to each role label. Full date/time on hover tooltip. User messages get _ts field when sent.
  • File rename. Double-click any filename in workspace panel to rename inline. POST /api/file/rename endpoint with path traversal protection.
  • Folder create. Folder icon button in workspace panel header. Prompt for name, POST /api/file/create-dir endpoint.
  • Session tags. Add #tag to session titles. Tags shown as colored chips in sidebar. Click a tag to filter the session list.
  • Session archive. Archive icon on each session. Archived sessions hidden by default; "Show N archived" toggle at top of list. Backend POST /api/session/archive with archived field on Session model.

Bug Fixes

  • Date grouping fix. Session list groups (Today/Yesterday/Earlier) now use created_at instead of updated_at, preventing sessions from jumping between groups when auto-titling touches updated_at.

[v0.15] Sprint 13 -- Alerts + Session QoL + Polish

March 30, 2026 | 221 tests

Features

  • Cron completion alerts. New GET /api/crons/recent endpoint. UI polls every 30s (pauses when tab is hidden). Toast notification per completion with status icon. Red badge count on Tasks nav tab, cleared when tab is opened.
  • Background agent error alerts. When a streaming session errors out and the user is viewing a different session, a persistent red banner appears above the messages: "Session X has encountered an error." View button navigates, Dismiss clears.
  • Session duplicate. Copy icon on each session in the sidebar (visible on hover). Creates a new session with the same workspace and model, titled "(copy)".
  • Browser tab title. document.title updates to show the active session title (e.g. "My Task -- Hermes"). Resets to "Hermes" when no session is active.

Bug Fixes

  • Click guard added for duplicate button to prevent accidental session navigation.

[v0.14] Sprint 12 -- Settings Panel + Reliability + Session QoL

March 30, 2026 | 211 tests

Features

  • Settings panel. Gear icon in topbar opens slide-in overlay. Persist default model and workspace server-side in settings.json. Server reads on startup.
  • SSE auto-reconnect. When EventSource drops mid-stream, attempts one reconnect using the same stream_id after 1.5s. Shared _wireSSE() function eliminates handler duplication.
  • Pin sessions. Star icon on each session. Pinned sessions float to top of sidebar under a gold "Pinned" header. Persisted in session JSON.
  • Import session from JSON. Upload button in sidebar. Creates new session with fresh ID from exported JSON file.

Bug Fixes

  • models.py uses _cfg.DEFAULT_MODEL module reference so save_settings() changes take effect for new_session().
  • Full-scan fallback sort in all_sessions() now accounts for pinned sessions.
  • save_settings() whitelists known keys only, rejecting arbitrary data.
  • Escape key closes settings overlay.

[v0.13] Sprint 11 -- Multi-Provider Models + Streaming Smoothness

March 30, 2026 | 201 tests

Features

  • Multi-provider model support. New GET /api/models endpoint discovers configured providers from config.yaml, auth.json, and API key environment variables. The model dropdown now populates dynamically from whatever providers the user has set up (Anthropic, OpenAI, Google, DeepSeek, Nous Portal, OpenRouter, etc.). Falls back to the hardcoded OpenRouter list when no providers are detected. Sessions with unlisted models auto-add them to the dropdown.
  • Smooth scroll pinning. During streaming, auto-scroll only when the user is near the bottom of the message area. If the user scrolls up to read earlier content, new tokens no longer yank them back down. Pinning resumes when they scroll back to the bottom.

Architecture

  • Routes extracted to api/routes.py. All 49 GET/POST route handlers moved from server.py into api/routes.py (802 lines). server.py is now a 76-line thin shell: Handler class with structured logging, dispatch to handle_get()/handle_post(), and main(). Completes the server split started in Sprint 10.
  • Cleaned up duplicate dead-code routes that existed in the old do_GET (skills/save, skills/delete, memory/write were duplicated in both GET and POST handlers).

Bug Fixes

  • Regression tests updated for new route module structure.

[v0.12.2] Concurrency + Correctness Sweeps

March 31, 2026 | 190 tests

Two systematic audits of all concurrent multi-session scenarios. Each finding became a regression test so it cannot silently return.

Sweep 1 (R10-R12)

  • R10: Approval response to wrong session. respondApproval() used S.session.session_id -- whoever you were viewing. If session A triggered a dangerous command requiring approval and you switched to B then clicked Allow, the approval went to B's session_id. Agent on A stayed stuck. Fixed: approval events tag _approvalSessionId; respondApproval() uses that.
  • R11: Activity bar showed cross-session tool status. Session A's tool name appeared in session B's activity bar while you were viewing B. Fixed: setStatus() in the tool SSE handler is now inside the activeSid guard.
  • R12: Live tool cards vanished on switch-away and back. Switching back to an in-flight session showed empty live cards even though tools had fired. Fixed: loadSession() INFLIGHT branch now restores cards from S.toolCalls.

Sweep 2 (R13-R15)

  • R13: Settled tool cards never rendered after response completes. renderMessages() has a !S.busy guard on tool card rendering. It was called with S.busy=true in the done handler -- tool cards were skipped every time. Fixed: S.busy=false set inline before renderMessages().
  • R14: Wrong model sent for sessions with unlisted model. send() used $('modelSelect').value which could be stale if the session's model isn't in the dropdown. Fixed: now uses S.session.model || $('modelSelect').value.
  • R15: Stale live tool cards in new sessions. newSession() didn't call clearLiveToolCards(). Fixed.

[v0.12.1] Sprint 10 Post-Release Fixes

March 31, 2026 | 177 tests

Critical regressions introduced during the server.py split, caught by users and fixed immediately.

  • uuid not imported in server.py -- chat/start returned 500 (NameError) on every new message
  • AIAgent not imported in api/streaming.py -- agent thread crashed immediately, SSE returned 404
  • has_pending not imported in api/streaming.py -- NameError during tool approval checks
  • Session.__init__ missing tool_calls param -- 500 on any session with tool history
  • SSE loop did not break on cancel event -- connection hung after cancel
  • Regression test file added (tests/test_regressions.py): 10 tests, one per introduced bug. These form a permanent regression gate so each class of error can never silently return.

[v0.12] Sprint 10 -- Server Health + Operational Polish

March 31, 2026 | 167 tests

Post-sprint Bug Fixes

  • SSE loop now breaks on cancel event (was hanging after cancel)
  • setBusy(false) now always hides the Cancel button
  • S.activeStreamId properly initialized in the S global state object
  • Tool card "Show more" button uses data attributes instead of inline JSON.stringify (XSS/parse safety)
  • Version label updated to v0.2
  • Session.__init__ accepts **kwargs for forward-compatibility with future JSON fields
  • Test cron jobs now isolated via HERMES_HOME env var in conftest (no more pollution of real jobs.json)
  • last_workspace reset after each test in conftest (prevents workspace state bleed between tests)
  • Tool cards now grouped per assistant turn instead of piled before last message
  • Tool card insertion uses data-msg-idx attribute correctly (was msgIdx, matching HTML5 dataset API)

Architecture

  • server.py split into api/ modules. 1,150 lines -> 673 lines in server.py. Extracted modules: api/config.py (101), api/helpers.py (57), api/models.py (114), api/workspace.py (77), api/upload.py (77), api/streaming.py (187). server.py is now the thin routing shell only. All business logic is independently importable.

Features

  • Background task cancel. Red "Cancel" button appears in the activity bar while a task is running. Calls GET /api/chat/cancel?stream_id=X. The agent thread receives a cancel event, emits a 'cancel' SSE event, and the UI shows "Task cancelled." in the conversation. Note: a tool call already in progress (e.g. a long terminal command) completes before the cancel takes effect -- same behavior as CLI Ctrl+C.
  • Cron run history viewer. Each job in the Tasks panel now has an "All runs" button. Click to expand a list of up to 20 past runs with timestamps, each collapsible to show the full output. Click again to hide.
  • Tool card UX polish. Three improvements:
    1. Pulsing blue dot on cards for in-progress tools (distinct from completed cards)
    2. Smart snippet truncation at sentence boundaries instead of hard byte cutoff
    3. "Show more / Show less" toggle on tool results longer than 220 chars

[v0.11] Sprint 9 -- Codebase Health + Daily Driver Gaps

March 31, 2026 | 149 tests

The sprint that closed the last gaps for heavy agentic use.

Architecture

  • app.js replaced by 6 modules. app.js is deleted. The browser now loads 6 focused files: ui.js (530), workspace.js (132), sessions.js (189), messages.js (221), panels.js (555), boot.js (142). The modules are a superset of the original app.js (two functions -- loadTodos, toolIcon -- were added directly to the modules after the split). No single file exceeds 555 lines.

Features

  • Tool call cards inline. Every tool Hermes uses now appears as a collapsible card in the conversation between the user message and the response. Live during streaming, restored from session history on reload. Shows tool name, preview, args, result snippet.
  • Attachment metadata persists on reload. File badges on user messages survive page refresh. Server stores filenames on the user message in session JSON.
  • Todo list panel. New checkmark tab in the sidebar. Shows current task list parsed from the most recent todo tool result in message history. Status icons: pending (○), in-progress (◉), completed (✓), cancelled (✗). Auto-refreshes when panel is active.
  • Model preference persists. Last-used model saved to localStorage. Restored on page load. New sessions inherit it automatically.

Bug Fixes

  • Tool card toggle arrow only shown when card has expandable content
  • Attachment tagging matches by message content to avoid wrong-turn tagging
  • SSE tool event was missing args field
  • /api/session GET was not returning tool_calls (history lost on reload)

[v0.10] Sprint 8 -- Daily Driver Finish Line

March 31, 2026 | 139 tests

Features

  • Edit user message + regenerate. Hover any user bubble, click the pencil icon. Inline textarea, Enter submits, Escape cancels. Truncates session at that point and re-runs.
  • Regenerate last response. Retry icon on the last assistant bubble only.
  • Clear conversation. "Clear" button in topbar. Wipes messages, keeps session slot.
  • Syntax highlighting. Prism.js via CDN (deferred). Python, JS, bash, JSON, SQL and more.

Bug Fixes

  • Reconnect banner false positive on normal loads (90-second window)
  • Session list clipping on short screens
  • Favicon 404 console noise (server now returns 204)
  • Edit textarea auto-resize on open
  • Send button guard while inline edit is active
  • Escape closes dropdown, clears search, cancels active edit
  • Approval polling not restarted on INFLIGHT session switch-back
  • Version label updated to v0.10

Hotfix: Message Queue + INFLIGHT

  • Message queue. Sending while busy queues the message with toast + badge. Drains automatically on completion. Cleared on session switch.
  • Message stays visible on switch-away/back. loadSession checks INFLIGHT before server fetch, so sent message and thinking dots persist correctly.

March 31, 2026 | 125 tests

Features

  • Cron edit + delete. Inline edit form per job, save and delete with confirmation.
  • Skill create, edit, delete. "+ New skill" form in Skills panel. Writes to ~/.hermes/skills/.
  • Memory inline edit. "Edit" button opens textarea for MEMORY.md. Saves via /api/memory/write.
  • Session content search. Filter box searches message text (up to 5 messages per session) in addition to titles. Debounced API call, results appended below title matches.

Architecture

  • /health now returns active_streams and uptime_seconds
  • git init on <repo>/, pushed to GitHub

Bug Fixes

  • Activity bar overlap on short viewports
  • Model chip stale after session switch
  • Cron output overflow in tasks panel

[v0.8] Sprint 6 -- Polish + Phase E Complete

March 31, 2026 | 106 tests

Architecture

  • Phase E complete. HTML extracted to static/index.html. server.py now pure Python. Line count progression: 1778 (Sprint 1) → 1042 (Sprint 5) → 903 (Sprint 6).
  • Phase D complete. All endpoints validated with proper 400/404 responses.

Features

  • Resizable panels. Sidebar and workspace panel drag-resizable. Widths persisted to localStorage.
  • Create cron job from UI. "+ New job" form in Tasks panel with name, schedule, prompt, delivery.
  • Session JSON export. Downloads full session as JSON via "JSON" button in sidebar footer.
  • Escape from file editor. Cancels inline file edit without saving.

[v0.7] Sprint 5 -- Phase A Complete + Workspace Management

March 30, 2026 | 86 tests

Architecture

  • Phase A complete. JS extracted to static/app.js. server.py: 1778 → 1042 lines.
  • LRU session cache. collections.OrderedDict with cap of 100, oldest evicted automatically.
  • Session index. sessions/_index.json for O(1) session list loads.
  • Isolated test server. Port 8788 with own state dir, conftest autouse cleanup.

Features

  • Workspace management panel. Add/remove/rename workspaces. Persisted to workspaces.json.
  • Topbar workspace quick-switch. Dropdown chip lists all workspaces, switches on click.
  • New sessions inherit last workspace. last_workspace.txt tracks last used.
  • Copy message to clipboard. Hover icon on each bubble with checkmark confirmation.
  • Inline file editor. Preview any file, click Edit to modify, Save writes to disk.

[v0.6] Sprint 4 -- Relocation + Session Power Features

March 30, 2026 | 68 tests

Architecture

  • Source relocated to <repo>/ outside the hermes-agent git repo. Safe from git pull, git reset, git stash. Symlink maintained at hermes-agent/webui-mvp.
  • CSS extracted (Phase A start). All CSS moved to static/style.css.
  • Per-session agent lock (Phase B). Prevents concurrent requests to same session from corrupting environment variables.

Features

  • Session rename. Double-click any title in sidebar to edit inline. Enter saves, Escape cancels.
  • Session search/filter. Live client-side filter box above session list.
  • File delete. Hover trash icon on workspace files. Confirm dialog.
  • File create. "+" button in workspace panel header.

[v0.5] Sprint 3 -- Panel Navigation + Feature Viewers

March 30, 2026 | 48 tests

Features

  • Sidebar panel navigation. Four tabs: Chat, Tasks, Skills, Memory. Lazy-loads on first open.
  • Tasks panel. Lists scheduled cron jobs with status badges. Run now, Pause, Resume. Shows last run output automatically.
  • Skills panel. All skills grouped by category. Search/filter. Click to preview SKILL.md.
  • Memory panel. Renders MEMORY.md and USER.md as formatted markdown with timestamps.

Bug Fixes

  • B6: New session inherits current workspace
  • B10: Tool events replace thinking dots (not stacked alongside)
  • B14: Cmd/Ctrl+K creates new chat from anywhere

[v0.4] Sprint 2 -- Rich File Preview

March 30, 2026 | 27 tests

Features

  • Image preview. PNG, JPG, GIF, SVG, WEBP displayed inline in workspace panel.
  • Rendered markdown. .md files render as formatted HTML in the preview panel.
  • Table support. Pipe-delimited markdown tables render as HTML tables.
  • Smart file icons. Type-appropriate icons by extension in the file tree.
  • Preview path bar with type badge. Colored badge shows file type.

[v0.3] Sprint 1 -- Bug Fixes + Foundations

March 30, 2026 | 19 tests

The first sprint. Established the test suite, fixed critical bugs.

Bug Fixes

  • B1: Approval card now shows pattern keys
  • B2: File input accepts valid types only
  • B3: Model chip label correct for all 10 models (replaced substring check with dict)
  • B4/B5: Reconnect banner on mid-stream reload (localStorage inflight tracking)
  • B7: Session titles no longer overflow sidebar
  • B9: Empty assistant messages no longer render as blank bubbles
  • B11: /api/session GET returns 400 (not silent session creation) when ID missing

Architecture

  • Thread lock on SESSIONS dict
  • Structured JSON request logging
  • 10-model dropdown with 3 provider groups (OpenAI, Anthropic, Other)
  • First test suite: 19 HTTP integration tests

[v0.2] UI Polish Pass

March 30, 2026

Visual audit via screenshot analysis. No new features -- design refinement only.

  • Nav tabs: icon-only with CSS tooltip (5 tabs, no overflow)
  • Session list: grouped by Today / Yesterday / Earlier
  • Active session: blue left border accent
  • Role labels: Title Case, softened color, circular icons
  • Code blocks: connected language header with separator
  • Send button: gradient + hover lift
  • Composer: blue glow ring on focus
  • Toast: frosted glass with float animation
  • Tool status moved from composer footer to activity bar above composer
  • Empty session flood fixed (filter + cleanup endpoint + test autouse)

[v0.1] Initial Build

March 30, 2026

Single-file web UI for Hermes. stdlib HTTP server, no external dependencies. Three-panel layout: sessions sidebar, chat area, workspace panel.

Core capabilities:

  • Send messages, receive SSE-streamed responses
  • Session create/load/delete, auto-title from first message
  • File upload with manual multipart parser
  • Workspace file tree with directory navigation
  • Tool approval card (4 choices: once, session, always, deny)
  • INFLIGHT session-switch guard
  • 10-model dropdown (OpenAI, Anthropic, Other)
  • SSH tunnel access on port 8787

Last updated: v0.25, April 3, 2026 | Tests: 423