The Hook That Was Meant to Guard My Japanese Folder Never Blocked Anything — Python Was Reading stdin as cp932
A PreToolUse hook guarding folders like 経理 or 議事録 silently lets edits through when Python's stdin defaults to cp932. How I reproduced it, the three-line fix, and one command to check your own hooks.
I Set onFailure to block, and the Docs' rm -rf Guard Still Let Everything Through Without jq
When a PreToolUse guard hook fails, does the action go ahead or stop? The docs' own rm -rf example exits 0 and waves everything through when jq is missing. Ten failure modes run for real, the fix, and a script that finds fail-open guards in settings.json.
Grep's First 250 Lines Touched Only 42 of the 183 Files That Matched
Searching an article repository for the word hook returned 1,312 lines across 183 files. ripgrep, git grep and grep all finished in 11 to 35 ms, so speed was never the issue. Output size and ordering were. A script that estimates what a 250-line cutoff will miss, plus a search order backed by measurements.
The Same Approval Prompt for 'cd, git add, git commit' Every Time — Following It to a Design Choice, Not a Missing Setting
With a compound command like cd /path && git add && git commit, Claude Code keeps asking for approval even with allow rules in place. Reading the official permissions page next to a GitHub report shows that cd combined with git prompts by design. Here is how to tell, in what order to check, and four ways to cut the prompts.
After Moving to SPM, My App Died the Moment It Launched — Reading One dyld Line with Claude Code
Right after moving from CocoaPods to Swift Package Manager, the build passed but the app died on launch. Here is how I traced one dyld line to its cause, the fix, and how to verify it.
I Wrote "I'll Do the Commits" in CLAUDE.md. The Next Morning git log Had One More Line.
When Claude Code commits despite being told not to: undo with git reset --soft, then stop it physically with permissions.deny plus a PreToolUse hook. Covers the git -c form that deny rules let through, and how to test the hook without starting Claude Code.
Two Default-Model Changes Haven't Reached Claude Code's Stable Channel Yet
This morning, Claude Code's stable channel sat 6 releases and 10 days behind latest. A small standard-library Python script that counts the gap in real, published releases instead of version arithmetic, and lists what hasn't arrived yet with a headline for each.
The Week Opus 5.5 Became the Default, I Counted the Places I'd Left as Aliases
Claude Code 2.1.280 made Opus 5.5 the default Opus and moved Pro's default from Sonnet to Opus. Before touching a single setting, I checked three things: what the alias resolves to, whether a saved /effort carries over, and what $0.20 cache reads do to a monthly estimate. Scripts included.
Taking Inventory of Worktrees That Were Supposed to Be Gone
Isolated worktrees my subagents created were never folded away. Here is what I measured in git 2.34.1 about when remove succeeds, the branches that outlive the trees, the 12 MB per-tree difference, and how I decide who owns cleanup.
I Was Paying for Pro and Still Getting Billed by the Console
Your subscription and your API usage are two separate ledgers, and Claude Code will happily run on either one. Which credential wins is decided by a precedence list where your login sits dead last. Here is how to read status, and why unattended runs answer differently.
How I decide between Cowork and Claude Code: by where approvals land
Cowork and Claude Code run the same Claude, so I stopped comparing features and started sorting work by one question: can a human approval interrupt this step, or not? Here is the line I draw and the code I keep on the unattended side.
My overnight crawl never came back, and the reason was that WebFetch had no ceiling on how long it would wait
Claude Code v2.1.268 gives WebFetch a 300-second deadline. Here is how an unattended run stalls on a server that never closes its response, why CLAUDE_CODE_WEBFETCH_DEADLINE_MS=0 does not mean 'do not wait', and how I now place two separate ceilings.