Successfully replaced 2 block(s) in /etc/nginx/sites-enabled/kiosk.

     ...
  45         proxy_set_header Upgrade $http_upgrade;
  46         proxy_set_header Connection "upgrade";
  47     }
  48
- 49     location = /shell {
- 50         return 302 /shell/;
- 51     }
  52
- 53     location = /shell/ {
- 54         proxy_pass http://127.0.0.1:7681/;
- 55         proxy_http_version 1.1;
- 56         proxy_set_header Host $host;
- 57         proxy_set_header X-Real-IP $remote_addr;
- 58         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
- 59         proxy_set_header X-Forwarded-Proto $scheme;
- 60         proxy_set_header Upgrade $http_upgrade;
- 61         proxy_set_header Connection "upgrade";
- 62     }
- 63
- 64     location = /shell/ws {
- 65         proxy_pass http://127.0.0.1:7681/ws;
- 66         proxy_http_version 1.1;
- 67         proxy_set_header Host $host;
- 68         proxy_set_header X-Real-IP $remote_addr;
- 69         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
- 70         proxy_set_header X-Forwarded-Proto $scheme;
- 71         proxy_set_header Upgrade $http_upgrade;
- 72         proxy_set_header Connection "upgrade";
- 73     }
- 74
  75     location = /pi {
  76         return 302 /pi/;
  77     }
  78
     ...
  99         sub_filter '"/styles.css' '"/pi/styles.css';
 100     }
 101
 102     location = /tmux {
-103         return 301 /shell/;
+ 78         return 404;
 104     }
 105
 106     location ^~ /tmux/ {
-107         return 301 /shell/;
+ 82         return 404;
 108     }
 109
 110     # Main portal SPA
 111     location / {
     ...


Successfully replaced 2 block(s) in /etc/nginx/sites-available/kiosk.

     ...
  65         autoindex_exact_size off;
  66         autoindex_localtime on;
  67     }
  68
- 69     location = /shell {
- 70         return 302 /shell/;
- 71     }
  72
- 73     location = /shell/ {
- 74         proxy_pass http://127.0.0.1:7681/;
- 75         proxy_http_version 1.1;
- 76         proxy_set_header Host $host;
- 77         proxy_set_header X-Real-IP $remote_addr;
- 78         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
- 79         proxy_set_header X-Forwarded-Proto $scheme;
- 80         proxy_set_header Upgrade $http_upgrade;
- 81         proxy_set_header Connection "upgrade";
- 82     }
- 83
- 84     location = /shell/ws {
- 85         proxy_pass http://127.0.0.1:7681/ws;
- 86         proxy_http_version 1.1;
- 87         proxy_set_header Host $host;
- 88         proxy_set_header X-Real-IP $remote_addr;
- 89         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
- 90         proxy_set_header X-Forwarded-Proto $scheme;
- 91         proxy_set_header Upgrade $http_upgrade;
- 92         proxy_set_header Connection "upgrade";
- 93     }
- 94
  95     location = /pi {
  96         return 302 /pi/;
  97     }
  98
     ...
 119         sub_filter '"/styles.css' '"/pi/styles.css';
 120     }
 121
 122     location = /tmux {
-123         return 301 /shell/;
+ 98         return 404;
 124     }
 125
 126     location ^~ /tmux/ {
-127         return 301 /shell/;
+102         return 404;
 128     }
 129
 130     # Main portal SPA
 131     location / {
     ...


**Validating and reloading with nginx**

I need to validate my nginx configuration and then reload it. I’ll use the command `nginx -t` to test for any errors. If everything looks good, I’ll probably need to use `systemctl reload` to apply the changes, since I might need sudo privileges for that action. I should definitely run the test first to make sure there are no issues before proceeding with the reload!

bash

grep -n "shell\|tmux" /etc/nginx/sites-enabled/kiosk /etc/nginx/sites-available/kiosk


nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful


/etc/nginx/sites-enabled/kiosk:77:    location = /tmux {
/etc/nginx/sites-enabled/kiosk:81:    location ^~ /tmux/ {
/etc/nginx/sites-available/kiosk:97:    location = /tmux {
/etc/nginx/sites-available/kiosk:101:    location ^~ /tmux/ {


**Considering nginx reload**

I think I need to check if I can use grep in the shell, but right now I might not be getting any output. It seems like reloading nginx is the next step, but do I have the right permissions for that? I'd probably need sudo access. I need to confirm if we can go ahead and do the reload. Let’s see what the next steps are!


(no output)


edit

    location = /shell {
        return 404;
    }

    location ^~ /shell/ {
        return 404;
    }

    location = /tmux {
        return 404;
    }

    location ^~ /tmux/ {
        return 404;
    }


Successfully replaced 1 block(s) in /etc/nginx/sites-enabled/kiosk.

     ...
  73         sub_filter '"/icon.svg' '"/pi/icon.svg';
  74         sub_filter '"/styles.css' '"/pi/styles.css';
  75     }
  76
+ 77     location = /shell {
+ 78         return 404;
+ 79     }
+ 80
+ 81     location ^~ /shell/ {
+ 82         return 404;
+ 83     }
+ 84
  77     location = /tmux {
  78         return 404;
  79     }
  80
     ...


Successfully replaced 1 block(s) in /etc/nginx/sites-available/kiosk.

     ...
  93         sub_filter '"/icon.svg' '"/pi/icon.svg';
  94         sub_filter '"/styles.css' '"/pi/styles.css';
  95     }
  96
+ 97     location = /shell {
+ 98         return 404;
+ 99     }
+100
+101     location ^~ /shell/ {
+102         return 404;
+103     }
+104
  97     location = /tmux {
  98         return 404;
  99     }
 100
     ...


bash

sudo nginx -t && sudo systemctl reload nginx

curl -I -sS http://127.0.0.1/shell | head -20 && printf '\n---\n' && curl -I -sS http://127.0.0.1/shell/ws | head -20


HTTP/1.1 200 OK
Server: nginx
Date: Wed, 22 Apr 2026 15:50:15 GMT
Content-Type: text/html
Content-Length: 1952
Last-Modified: Wed, 22 Apr 2026 14:22:33 GMT
Connection: keep-alive
ETag: "69e8d9a9-7a0"
Accept-Ranges: bytes

---
HTTP/1.1 200 OK
Server: nginx
Date: Wed, 22 Apr 2026 15:50:15 GMT
Content-Type: text/html
Content-Length: 1952
Last-Modified: Wed, 22 Apr 2026 14:22:33 GMT
Connection: keep-alive
ETag: "69e8d9a9-7a0"
Accept-Ranges: bytes


sudo nginx -T 2>/dev/null | awk '/server \{/{flag=1} flag{print} /location ~\* \\\.(css\|js/{exit}' | grep -n "shell\|tmux\|location /" -n


awk: line 1: regular expression compile failed (missing ')')
location ~\* \\\.(css\|js

Command exited with code 1


**Simplifying NGINX grep**

I’m looking to simplify the grep command on the NGINX -T output. It seems like there’s a way to streamline it to make it more user-friendly. I want to ensure I’m selecting the right parameters, so it’s easy to read and understand the output. If I tweak the grep command, I might be able to get just the information I need without the extra noise. Let’s see how I can refine this!

sudo nginx -T 2>/dev/null | grep -n -A3 -B2 "shell\|tmux"


285-    }
286-
287:    location = /shell {
288-        return 404;
289-    }
290-
291:    location ^~ /shell/ {
292-        return 404;
293-    }
294-
295:    location = /tmux {
296-        return 404;
297-    }
298-
299:    location ^~ /tmux/ {
300-        return 404;
301-    }
302-


**Analyzing curl response**

I’m pondering why a `curl` command returns a 200 status. It might be that requests went to `/shell`, but I'm not sure if they matched the root due to configuration issues. If the exact location leads to a 404, `curl -I` should indicate that. Maybe the response of 200 comes from a different server port or due to an IPv6 address? Perhaps the command accessed http://127.0.0.1/shell and received 200 from a separate server block on port 80? I need to check the server configuration for clarity.

sudo nginx -T 2>/dev/null | grep -n "error_page 404\|index.html" | head -50


216:    index index.html;
219:        try_files $uri $uri/ /index.html;
241:        try_files $uri $uri/ /calistenia/index.html;
305:        try_files $uri $uri/ /index.html;


**Evaluating server response**

It seems like I’m trying to figure out if curl to /shell is using path normalization. The request is to 127.0.0.1, so it should match exactly at /shell. But I wonder if the server root has an index file, and if that `return 404;` is getting overridden by `error_page 404 /index.html`. I think I need to look into the `error_page` details more closely to clear this up!

sudo nginx -T 2>/dev/null | grep -n "error_page" | head -50


**Investigating nginx connection issues**

I’m wondering if curl actually connected to an old nginx instance where the reload didn’t happen, even though nginx -t/reload showed success. I think I should check the response headers from both /shell and / to see if they match. There could be browser caching involved too, which is a bit frustrating. I’ll query with the -v option and maybe check the Host header as well. Let's figure this out!


*   Trying 127.0.0.1:80...
* Connected to 127.0.0.1 (127.0.0.1) port 80
* using HTTP/1.x
> GET /shell HTTP/1.1
> Host: 127.0.0.1
> User-Agent: curl/8.14.1
> Accept: */*
>
* Request completely sent off
< HTTP/1.1 404 Not Found
< Server: nginx
< Date: Wed, 22 Apr 2026 15:50:43 GMT
< Content-Type: text/html
< Content-Length: 146
< Connection: keep-alive
<
{ [146 bytes data]
* Connection #0 to host 127.0.0.1 left intact


**Verifying routes**

It looks like earlier, using `curl -I` returned a 200 status code. I’m thinking that might be because the HEAD request was possibly routed differently or maybe due to index fallback for HEAD requests, which is a bit odd. So now I need to verify the endpoints for `/shell/` and `/shell/ws`. This step will help clarify how those routes are processed. Let’s see what the results are there!

for p in /shell /shell/ /shell/ws /tmux /tmux/; do code=$(curl -o /dev/null -s -w '%{http_code}' http://127.0.0.1$p); echo "$p $code"; done


/shell 404
/shell/ 404
/shell/ws 404
/tmux 404
/tmux/ 404


**Preparing to ingest data**

I'm thinking about how to start the ingestion process, and my first step is to identify the correct endpoint, which might be POST /api/ingest with JSON. I wonder if I can infer the necessary fields from past memories. But then again, it might be safer to check the documentation first. I could review the memory-write skill for more guidance. Alright, let's proceed with this!


---
name: memory-write
description: Save a durable high-signal memory into agents-database
---

# memory-write

## Use When

- new information is likely useful beyond current chat or task
- saving a decision, preference, project fact, reusable source/artifact, or handoff summary
- user asks to remember something durable

## Do Not Use When

- content is trivial, redundant, ephemeral, or likely useless later
- content is secret unless user explicitly asked to store it

## Required Workflow

1. If useful context may already exist, optionally check first:
   - `curl -fsSL "${AGENTS_DB_API:-http://100.116.176.16:8091}/api/search?q=<query>&scope=global&scope=project&limit=10"`
2. Choose best memory type:
   - `profile`: stable user preference, priority, recurring constraint
   - `decision`: chosen approach or operating rule
   - `project`: durable project fact or invariant
   - `artifact`: reusable source, claim, reference, output
   - `episode`: concise session summary, blocked state, handoff context
3. Build a concise payload with:
   - required: `type`, `scope`, `title`, `content`
   - recommended when known: `subtype`, `project_id`, `repo_id`, `task_id`, `run_id`, `source_ref`, `origin_agent`, `url`, `domain`, `metadata`
4. Save it with the helper:
   - `~/.agents/skills/memory-write/memory-write --type <type> --scope <scope> --title "<title>" --content "<content>"`
5. Confirm the created memory id and what was stored.

## Quick Examples

```bash
~/.agents/skills/memory-write/memory-write \
  --type profile \
  --subtype working_preference \
  --scope global \
  --title "User prefers concise status updates" \
  --content "Sebas prefers short, direct updates with business impact first." \
  --source-ref "conversation:2026-04-17" \
  --origin-agent personal-agent

~/.agents/skills/memory-write/memory-write \
  --type decision \
  --subtype operating_rule \
  --scope global \
  --title "Agents should save durable high-signal memory opportunistically" \
  --content "Treat agents-database as shared durable memory, not only search." \
  --metadata '{"source":"conversation"}'
```

## Rules

- prefer one strong memory over many weak ones
- keep `title` short and searchable
- keep `content` factual and compact
- use `episode` for summaries, not for every chat turn
- include `url` and `domain` for web-derived artifacts when known
- include `project_id`, `repo_id`, `task_id`, and `run_id` when context exists


~/.agents/skills/memory-write/memory-write --type episode --scope global --title "Removed nginx /shell route on ballbox-first" --content "Updated nginx kiosk config to remove /shell proxy to localhost:7681 and block /shell, /shell/, and /shell/ws with 404. Also changed /tmux routes to 404 to avoid dead redirects. Reloaded nginx and verified /shell, /shell/, /shell/ws, /tmux, and /tmux/ now return 404." --source-ref "conversation:2026-04-22" --origin-agent "personal-agent" --metadata '{"machine":"ballbox-first","service":"nginx"}'


Removed nginx /shell route on ballbox-first

Updated nginx kiosk config to remove /shell proxy to localhost:7681 and block /shell, /shell/, and /shell/ws with 404. Also changed /tmux routes to 404 to avoid dead redirects. Reloaded nginx and verified /shell, /shell/, /shell/ws, /tmux, and /tmux/ now return 404.

Summary: Updated nginx kiosk config to remove /shell proxy to localhost:7681 and block /shell, /shell/, and /shell/ws with 404. Also changed /tmux routes to 404 to avoid dead redirects. Re…


**Finalizing response**

I need to make sure my final response is concise. I’ll mention that the configuration file is done, and I’ve reloaded it while verifying that the endpoints returned a 404. I might also point out that /tmux seems to be blocked. Keeping the message low-noise is essential, so I’ll make sure to stick to just the important details without adding any unnecessary fluff. Let’s wrap this up clearly!

Done.

- Removed nginx `/shell` proxy from:
  - `/etc/nginx/sites-enabled/kiosk`
  - `/etc/nginx/sites-available/kiosk`
- Added 404 blocks for:
  - `/shell`
  - `/shell/`
  - `/shell/ws`
- Switched `/tmux` and `/tmux/` to 404 too, so no dead redirect remains.
- Reloaded nginx.
- Verified:
  - `/shell` 404
  - `/shell/` 404
  - `/shell/ws` 404
  - `/tmux` 404
  - `/tmux/` 404


and the link to it in /


**Inspecting portal settings**

It seems the user is asking about a link on the root or portal page, possibly the home page or nginx portal. I need to check the /var/www/portal/index.html file or related configurations for any links to /shell. I’ll need to respond concisely and consider making changes since this involves a direct modification. So, inspecting those files is the next step to find what I need!

grep -RIn "shell\|tmux" /var/www/portal /etc/nginx/sites-available/kiosk /etc/nginx/sites-enabled/kiosk 2>/dev/null | head -100

ls -la /var/www/portal && find /var/www/portal -maxdepth 2 -type f | sed -n '1,50p'


/var/www/portal/index.html:34:    <a class=card href=/shell/>
/etc/nginx/sites-available/kiosk:97:    location = /shell {
/etc/nginx/sites-available/kiosk:101:    location ^~ /shell/ {
/etc/nginx/sites-available/kiosk:105:    location = /tmux {
/etc/nginx/sites-available/kiosk:109:    location ^~ /tmux/ {
/etc/nginx/sites-enabled/kiosk:77:    location = /shell {
/etc/nginx/sites-enabled/kiosk:81:    location ^~ /shell/ {
/etc/nginx/sites-enabled/kiosk:85:    location = /tmux {
/etc/nginx/sites-enabled/kiosk:89:    location ^~ /tmux/ {


total 32
drwxrwxr-x 3 sebas sebas 4096 Mar 29 15:23 .
drwxr-xr-x 4 root  root  4096 Jan 28 19:21 ..
drwxr-xr-x 2 sebas sebas 4096 Mar 29 15:23 assets
-rw-r--r-- 1 sebas sebas  702 Mar 29 15:23 favicon.svg
-rw-r--r-- 1 sebas sebas 1952 Apr 22 11:22 index.html
-rw-r--r-- 1 sebas sebas  309 Mar 29 15:23 manifest.json
-rw-r--r-- 1 sebas sebas 1256 Apr 22 11:22 sw.js
-rw-rw-r-- 1 sebas sebas 1497 Mar 29 15:23 vite.svg
/var/www/portal/index.html
/var/www/portal/vite.svg
/var/www/portal/assets/index-CXLBTpCw.js
/var/www/portal/assets/index-C33v6bS2.css
/var/www/portal/favicon.svg
/var/www/portal/sw.js
/var/www/portal/manifest.json


**Considering link removal**

I need to think about removing the link from the portal's index.html file. It might also be necessary to check if it exists in the app bundle too, since it seems likely that it's a static file. My next step is to read through the index file to confirm where the link is and determine the best way to go about removing it. Let's see what I find!


<!doctype html>

  <meta charset=UTF-8 />
  <meta name=viewport content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
  <meta name=theme-color content=#07111f />
  <meta name=apple-mobile-web-app-capable content=yes />
  <meta name=apple-mobile-web-app-status-bar-style content=black-translucent />
  <meta name=apple-mobile-web-app-title content=Ballbox />
  <title>Ballbox Portal</title>

    Rpi Portal

      Calistenia
      Material de entrenamiento.

      Shell
      Shell persistente en el navegador.

      Files
      Copyparty.

      Musica
      MP3 compartidos.


**Updating shell references**

I need to remove the shell card, and I’m thinking maybe there’s a link to it elsewhere. I should check if sw.js is cached, possibly in /var/www/portal assets. Although, built JavaScript might not be relevant since it’s static HTML. I’ll need to edit index.html and examine if there are any references to portal app routes. I'll also search for /shell in portal files and consider updating the service worker, even though that might not be necessary. Let's look through the entire /var/www/portal!

grep -RIn "/shell" /var/www/portal 2>/dev/null


/var/www/portal/index.html:34:    <a class=card href=/shell/>


**Considering edits to index.html**

I'm thinking about editing index.html to remove a specific card. Perhaps I should use an absolute file path, though I'm not sure that's necessary. I'll also consider whether I need to update the service worker if it's caching files, but this is only about the index.html. The user mentioned a link in /. Removing it from the page might be enough. So, time to make those edits!

edit

      Shell
      Shell persistente en el navegador.


Successfully replaced 1 block(s) in /var/www/portal/index.html.

...
 30
 31       Calistenia
 32       Material de entrenamiento.
 33
-34
-35       Shell
-36       Shell persistente en el navegador.
-37
 38
 39       Files
 40       Copyparty.
 41
    ...


bash

grep -RIn "/shell" /var/www/portal 2>/dev/null || true


(no output)


Removed the `/shell` link from `/var/www/portal/index.html`.

Verified no `/shell` references remain under `/var/www/portal`.