ListeningKitapiFeatures
| Domain | boot |
| Kind | query |
| doc_id | — |
| Path | /api/api.features |
| Sends | `------WebKitFormBoundaryuKH9Aya6mNRohK1B |
Content-Disposition: form-data; name, ------WebKitFormBoundary7tQXAPxlsKoG9o1Q | |
| Content-Disposition: form-data; name` | |
| Reads | ok, features.feature_builder_story_step, features.feature_olug_remove_required_workspace_setting, features.feature_file_threads, features.feature_broadcast_indicator, features.feature_channel_mgmt_message_count, features.feature_channel_exports, features.feature_allow_intra_word_formatting, features.feature_beacon_js_errors, features.feature_user_app_disable_speed_bump, features.feature_cea_allowlist_changes, features.feature_cea_admin_controls and 13 more |
| Called from | runs/inspect/20261103T065639_mattSlack/script36.js:1 anonymous, runs/inspect/20261103T065639_mattSlack/script31.js:2988 anonymous |
| rea | ev_1d54471c83d0e4beade9f26c5f556d7aa7a8fda485f4e34881297a1010f427a6 |
Seen 2 time(s) in 1 run(s).
| Action | Our step | Times | Status | Took | After step start | Errors |
|---|---|---|---|---|---|---|
| inspect | step 4: goto /client | 1 | 200 | 539 ms | 3159 ms | — |
| inspect | step 6: goto /client/T0C4VCD06MR/D0C8VAE7REU | 1 | 200 | 305 ms | 2225 ms | — |
What it sent and what came back (the newest 2 from our runs)
Read from each run's own recording (rule 73), secrets and signed link tokens taken out. Kept in ~/.logCli/rea/clientFacts.json, so it stays after the run is pruned.
runs/inspect/20261103T065639_mattSlack, step 4: goto /client: 200, 539 ms
Sent:
{
"query": {
"_x_id": "noversion-1793689060.901",
"_x_gantry": "true",
"_x_desktop_ia": "4",
"_x_version_ts": "1793684253",
"_x_foreground": "true",
"_x_frontend_build_type": "current",
"fp": "6f",
"_x_num_retries": "0"
},
"body": {
"------WebKitFormBoundaryuKH9Aya6mNRohK1B\r\nContent-Disposition: form-data; name": "\"token\"\r\n\r\nxoxc-12165421006739-12156263517591-12492529441700-5bffe6e6a317b9bbab53d938a4526d20e882de6ab372cd46f9f90868bb0322a0\r\n------WebKitFormBoundaryuKH9Aya6mNRohK1B\r\nContent-Disposition: form-data; name=\"platform\"\r\n\r\nsonic\r\n------WebKitFormBoundaryuKH9Aya6mNRohK1B\r\nContent-Disposition: form-data; name=\"_x_app_name\"\r\n\r\nclient\r\n------WebKitFormBoundaryuKH9Aya6mNRohK1B\r\nContent-Disposition: form-d… (474 chars)"
}
}Answered:
{
"ok": true,
"features": {
"feature_builder_story_step": false,
"feature_olug_remove_required_workspace_setting": false,
"feature_file_threads": true,
"feature_broadcast_indicator": true,
"feature_channel_mgmt_message_count": false,
"feature_channel_exports": false,
"feature_allow_intra_word_formatting": true,
"feature_beacon_js_errors": false,
"feature_user_app_disable_speed_bump": true,
"feature_cea_allowlist_changes": false,
"feature_cea_admin_controls": false,
"feature_cea_allowlist_changes_plus": false,
"feature_ia_layout": true,
"feature_enterprise_mobile_device_check": true,
"feature_channel_sections": true,
"feature_no_deprecation_in_updater": false,
"feature_composer_auth_admin": true,
"feature_esc_grid_migrations_format_translate": false,
"feature_rel_notes_product_updates": false,
"feature_users_count_latest_cache": false,
"feature_builder_block_kit": true,
"feature_cea_empty_pref_to_null": false,
"feature_bot_user_id_lookup_for_app_profiles": false
},
"config_version_ts": 1793689060
}runs/inspect/20261103T065639_mattSlack, step 6: goto /client/T0C4VCD06MR/D0C8VAE7REU: 200, 305 ms
Sent:
{
"query": {
"_x_id": "noversion-1793689117.049",
"_x_gantry": "true",
"_x_desktop_ia": "4",
"_x_version_ts": "1793684253",
"_x_foreground": "true",
"_x_frontend_build_type": "current",
"fp": "6f",
"_x_num_retries": "0"
},
"body": {
"------WebKitFormBoundary7tQXAPxlsKoG9o1Q\r\nContent-Disposition: form-data; name": "\"token\"\r\n\r\nxoxc-12165421006739-12156263517591-12492529441700-5bffe6e6a317b9bbab53d938a4526d20e882de6ab372cd46f9f90868bb0322a0\r\n------WebKitFormBoundary7tQXAPxlsKoG9o1Q\r\nContent-Disposition: form-data; name=\"platform\"\r\n\r\nsonic\r\n------WebKitFormBoundary7tQXAPxlsKoG9o1Q\r\nContent-Disposition: form-data; name=\"_x_app_name\"\r\n\r\nclient\r\n------WebKitFormBoundary7tQXAPxlsKoG9o1Q\r\nContent-Disposition: form-d… (474 chars)"
}
}Answered:
{
"ok": true,
"features": {
"feature_builder_story_step": false,
"feature_olug_remove_required_workspace_setting": false,
"feature_file_threads": true,
"feature_broadcast_indicator": true,
"feature_channel_mgmt_message_count": false,
"feature_channel_exports": false,
"feature_allow_intra_word_formatting": true,
"feature_beacon_js_errors": false,
"feature_user_app_disable_speed_bump": true,
"feature_cea_allowlist_changes": false,
"feature_cea_admin_controls": false,
"feature_cea_allowlist_changes_plus": false,
"feature_ia_layout": true,
"feature_enterprise_mobile_device_check": true,
"feature_channel_sections": true,
"feature_no_deprecation_in_updater": false,
"feature_composer_auth_admin": true,
"feature_esc_grid_migrations_format_translate": false,
"feature_rel_notes_product_updates": false,
"feature_users_count_latest_cache": false,
"feature_builder_block_kit": true,
"feature_cea_empty_pref_to_null": false,
"feature_bot_user_id_lookup_for_app_profiles": false
},
"config_version_ts": 1793689117
}What it does
Asks which feature flags (features.feature_*) are on for the workspace as the client boots: sent by step 4 (goto /client, 539 ms, 3.2 s after the step started) and again by step 6 (goto /client/T0C4VCD06MR/D0C8VAE7REU), answered 200 both times with ok and the flag map.
What our machine does with it
Nothing: no log-cli code calls it. The engine (python/slackApi/engine.py) works through GabrielCore on curl_cffi, which signs in with the d cookie and calls only the web API methods it needs, so this is Slack's own web client boot traffic that log inspect recorded. Nothing in log-cli reads the flags.
What can go wrong
Like every Slack web API answer it carries ok; with ok: false the error field says why (for example not_authed, invalid_auth, ratelimited). Both recorded answers were 200 with no error, so nothing here stopped the inspect run.