Vlad GURDIGA gurdiga

claude-tool-profiling

A Claude Agent Skill that measures how long individual Claude Code tool calls take — Bash, Edit, MCP tools, everything.

It uses Claude Code's built-in OpenTelemetry instrumentation with the console exporter, so no Docker collector or observability backend is needed. Spans land in stdout, a small awk pipeline extracts tool.execution durations.

Why

When you're scripting lots of tiny tool calls, it helps to know the per-call floor. For example, the benchmark below shows that Bash "echo hello" has an overhead ~20× higher than an MCP stdio tool — which changes how you'd design a multi-step workflow.

Health Data

Apple Health exports and analysis scripts.

Pull Request Guidelines

When creating PRs:

Create as draft PR (gh pr create --draft)
Assign to the user (--assignee @me)
Add the "🌟 NEW FEATURE" label (--label "🌟 NEW FEATURE")
Do not hard-wrap long Markdown text lines in PR descriptions
Do not include Co-Authored-By: Claude line in PR descriptions (co-authorship is already mentioned in commits)

About this

This is a little hack to fix the issue reported by a lot of Blogspot bloggers here:

https://support.google.com/blogger/thread/94150705/blogger-quick-edit-pencil-icon-has-disappeared https://support.google.com/blogger/thread/94163591/edit-tool-on-blog

NOTE: A little downside is that the “Pencil” word under the posts is visible to everyone (not only the blog authors).

How to use

Per-directory Bash history (w/o aliasing cd)

I use Bash’s PROMPT_COMMAND variable:

The value of the variable PROMPT_COMMAND is examined just before Bash prints each primary prompt. If PROMPT_COMMAND is set and has a non-null value, then the value is executed just as if it had been typed on the command line.

The source code should be pretty straight forward, but if not, please ask in the comments. Put this in your .bashrc or similar:

# per-directory Bash history

	/*

	1. Check if there are any new messages with “DMARC Reports” label in my GMail, and
	2. if yes, then get the attached file and put it in the “DMARC Reports” folder in my GDrive.
	3. Then send me an email with a report about what happened.

	*/

	// GmailApp: https://developers.google.com/apps-script/reference/gmail/gmail-app
	// DriveApp: https://developers.google.com/apps-script/reference/drive/drive-app

	.ONESHELL:
	MAKEFLAGS=

	export CURL_PARAMS=--silent --connect-timeout 5 --retry-delay 0 --retry 5

	start: list-albums # download-photos

	list-albums:
	@function main() {
	list_albums "/albums/c111/SandraDodd"

	default:
	Make what?

	sync: download upload

	download:
	time aws --profile mx-optimizely s3 sync s3://optimizely-export-ng/10629356/10629356/2.0/2019/08/14/ 2019/08/14/

	download-day:
	test -z "$(DAY)" && (echo "Give me a DAY, please. Something like DAY=08/21." && exit 1) \|\| \

	tell application "Notes"
	repeat with eachNote in notes in folder "Log"
	tell eachNote
	set content to body as text
	set {year:y, month:m, day:d, hours:h, minutes:n} to creation date

	set m to m as number
	set d to d as number
	set n to n as number
	set h to h as number

	function getCookieByName(name) {
	return unescape(
	(document.cookie.split(/; /g)\|\|[])
	.filter(function(pair) {
	return pair.split('=')[0] === name;
	})[0]
	.split('=')[1]
	);
	}