Liz Fong-Jones (方禮真)

@lizthegrey

🇺🇸🏳️‍🌈🏳️‍⚧️🥄❄️🐆👩🏽‍💻 in 🇦🇺🇨🇦 working on 🍯⬢🔭 she/it

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Liz Fong-Jones (方禮真)@lizthegrey· 20d

It's out! As of today you can order the PRINT 2nd edition of Observability Engineering from any major bookseller; no more waiting for preorders. Co-written w/ @charity.wtf, @gmiranda23.bsky.social, @aparker.io & guest authors Buy: www.indiebound.org/book/9781098... or www.amazon.com/Observabilit...

blue background and sparkles around a front cover image of observability engineering, second edition, by charity majors, liz fong-jones, and george miranda with austin parker

Liz Fong-Jones (方禮真)@lizthegrey· Jul 9

ICE T meme of SVU "Lab found traces of estradiol on an applicator. They call it V E."

Liz Fong-Jones (方禮真)@lizthegrey· Jul 8

I'm not into tokenmaxxing for the sake of tokenmaxxing, but damn that was a productive week.

Weekly limits
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Liz Fong-Jones (方禮真)@lizthegrey· Jul 6

hey btw if you don't know about the dutch reach, now you do. www.skoda-storyboard.com/en/lifestyle...

(1) always check your rear-view mirror first
(2) open the door with the hand further away from it
(3) look around and carefully get out of the car

figure of person looking backwards for bicycles while preparing to open a door, with the bike in sight line because the person's right hand was on the door and their torso was spun around as a result so they could see easily

Liz Fong-Jones (方禮真)@lizthegrey· Jun 20

yeah i get it too but tailored to os x

command space terminal enter command v enter malware

Liz Fong-Jones (方禮真)@lizthegrey· Jun 15

a set of slides from a deck I presented in 2022 at DDD Brisbane. and the problem is still getting WORSE. (the smoke pictures are satellite imagery from the 2019 bushfires)

Left panel is the same NASA satellite fire/smoke image with the same city labels (Brisbane, Sydney, Canberra, Mallacoota).
Right: Same year-by-year grid of Australia maps 1960–2021, but this version shows temperature anomaly data rather than rainfall, using a blue (cooler than average) to red (warmer than average) colour scale. Earlier decades show more mixed blue/red patterns; from roughly 2000 onward, red progressively dominates. 2018 and 2019 are highlighted with an orange box, both showing almost entirely deep red colouring, indicating record or near-record high temperatures continent-wide. Same CC-BY licence footer as Image 3.
Sources: NASA (Public Domain), Australia BOM (CC-BY)

Left: NASA satellite image of the eastern Australian coastline showing smoke plumes and red fire markers (active fire detections) from Brisbane down through Sydney, Canberra, and to Mallacoota. Labels on image: Brisbane, Sydney, Canberra, Mallacoota. Source: NASA (Public Domain).
Right: Grid of small Australia maps showing annual rainfall decile data year by year from 1960 to 2021 (Australia BOM). Colour scale from green (above average) to yellow (average) to red/pink (below average/lowest on record). 2018 and 2019 are highlighted with an orange box, both showing predominantly red/pink colouring across the continent, indicating very much below average to lowest-on-record rainfall. Footer: "Product code: IDCKPTSAA0". CC-BY licence note: "Unless otherwise noted, all maps, graphs and diagrams on this page are licensed under the Creative Commons Attribution 4.0 International Licence."
Sources: NASA (Public Domain), Australia BOM (CC-BY)

Left: A map of Australia titled "Australian rainfall deciles, 1 November 2021 to 31 October 2022, Australian Gridded Climate Data". Legend (Rainfall decile ranges): 10 = Highest on record (darkest blue); Very much above average; 8–9 = Above average; 4–7 = Average; 2–3 = Below average; 1 = Very much below average; Lowest on record (darkest red/pink). The map shows most of eastern and central Australia in deep blue (highest on record or very much above average), with small patches of red/pink in far north Queensland and south-west Western Australia. Base period: 1900–Oct 2022. © Commonwealth of Australia 2022, Bureau of Meteorology. Dataset: AGCD. Issued: 21/11/2022.
Right: Screenshot of The Guardian website. Header: "Support the Guardian – Available for everyone, funded by readers. Support us →". Navigation: News | Opinion | Sport | Culture | Lifestyle | More ↓. Sub-navigation: Coronavirus World AU politics Environment Football Indigenous Australia Immigration Media Business Science Tech. Headline: "NSW floods now Australia's most expensive natural disaster as insurance claims skyrocket". Subheading: "Mayor of flood-hit Forbes says some residents have been told their policies won't be renewed, as parts of the state remain isolated." Timestamp partially visible: 2022 18:44. Photo shows a flooded town street with emergency vehicles.
Sources: Australia BOM (CC-BY), The Guardian (fair use)

Left: A nested pie/sunburst chart titled "Global greenhouse gas emissions by sector". Subtitle: "This is shown for the year 2016 – global greenhouse gas emissions were 49.4 billion tonnes CO₂eq." The largest segment is Energy (73.2%), subdivided into: Energy use in Industry (24.2%), Transport (16.2%) including Road Transport (11.9%) and Aviation (highlighted with orange box), Energy use in buildings (17.5%) including Commercial (6.6%) and Residential buildings (10.9%), and other subcategories. Other top-level segments: Agriculture, Forestry & Land Use (18.4%), Industry (5.2%), Waste (3.2%), with further subdivisions labelled (many small and partially legible). Source: Our World In Data – Hannah Ritchie (CC-BY); Bureau of Meteorology.
Right: Screenshot of an academic paper. Journal: "Review". Title: "The real climate and transformative impact of ICT: A critique of estimates, trends, and regulations". Authors: Charlotte Freitag, Mike Berners-Lee, Kelly Widdicks, Bran Knowles, Gordon S. Blair, Adrian Friday. DOI: https://doi.org/10.1016/j.patter.2021.100340. Under a Creative Commons license. Open access. Published in Patterns, Volume 3, Issue 8, 12 August 2022, Pages 100576. Excerpt highlighted in orange: "global emissions from ICT are as high as 2.1%–3.9%". Surrounding text reads: "To avoid catastrophic consequences from climate change, all sectors of the global economy, including Information Communication Technology (ICT), must keep their greenhouse gas (GHG) emissions in line with the Paris Agreement. We examine peer-reviewed estimates of ICT's GHG emissions, which put ICT's share of global GHG emissions at 1.8%–2.8%. We find pronounced differences and much debate concerning the underlying assumptions behind the peer-reviewed studies, which could suggest that global emissions from ICT are as high as 2.1%–3.9%. All study analysts agree that ICT emissions will not reduce without major concerted political [text cut off]"
Sources: Our World In Data – Hannah Ritchie

Liz Fong-Jones (方禮真)@lizthegrey· Jun 14

Mohammad Bagher Ghalibaf, Iran’s lead negotiator with Washington, condemned Israel’s strikes on Lebanon, suggesting that they undermined U.S. credibility.

“If you neither have the will nor the ability to execute your commitments, talking about the continuation of the path is not possible,” he said on social media, referring to the peace negotiations.

Mr. Trump had said previously that an agreement was “scheduled to get signed” on Sunday, and that it would immediately reopen the Strait of Hormuz, a critical shipping route that Iran has tried to control during the war. And Pakistan, a key mediator in the negotiations, had said on Saturday that the country was preparing for “the electronic signing of the peace deal.”

But Esmail Baghaei, a spokesman for Iran’s foreign ministry, said an agreement would not be signed on Sunday, though he left open the possibility that one could be agreed upon in the coming days, according to Iranian state media.

Liz Fong-Jones (方禮真)@lizthegrey· Jun 14

yeah I don't think a ceasefire or deal are happening. x.com/Ebrahimazizi33

ابراهیم عزیزی
@Ebrahimazizi33
·
1h
Today’s crime by the Zionist regime in Dahieh, Beirut once again proved the U.S. is weak without credibility, as it is not even capable of controlling this illegitimate regime.
A strong response is coming.
ابراهیم عزیزی
@Ebrahimazizi33
·
1h
Translated from Persian
Today's crime by the Zionist regime in Dahiyeh once again proved that America is weak and discredited, unable even to control this fake regime.
The response, too, by the United Resistance Front, is definitive.

Liz Fong-Jones (方禮真)@lizthegrey· Jun 14

lol www.nytimes.com/live/2026/06...

30 minutes ago
Jonathan SwanWhite House reporter

President Trump has lashed out at Prime Minister Benjamin Netanyahu of Israel, telling an Axios reporter that the Israeli leader has “no judgement,” using an expletive. Trump told Axios’s Barak Ravid that he was “so pissed off” that Israel launched strikes around Beirut shortly before Trump’s team was expecting to sign an agreement with Iran to end the war and begin negotiations over Tehran’s nuclear program. Trump told the reporter that he had let Netanyahu know how angry he was, but, he said, he still expected the deal to be signed today.

Liz Fong-Jones (方禮真)@lizthegrey· Jun 8

hey any Vancouver transit nerds know what these four lit buttons on a Compass reader are for? Spotted on a 99-B line bus. @translink.ca

a normal compass reader but with a blue light lit up, not just green, along the top, and four backlit buttons between tap card and the compass rfid reader

Liz Fong-Jones (方禮真)@lizthegrey· May 25

I guess I won't be needing this any more, will I?

Steven Rosenbaum
Executive Director
Sustainable Media Center

Liz Fong-Jones (方禮真)@lizthegrey· May 20

🇦🇺🇦🇺🇦🇺

A hand holds a printed letter outdoors above a paved brick footpath. The letter reads:

---

[Black header with Australian Government coat of arms]
**Australian Government**
**Department of Home Affairs**

---

**Congratulations, you passed the Australian citizenship test**

**Next steps**

Refer to the Department's website for further information on what happens next with your application:
immi.homeaffairs.gov.au/citizenship/become-a-citizen/permanent-resident#When

**Providing documents and information**

Additional guidance for providing documents or information to complete your citizenship application can be found in the *Citizenship by Conferral – Additional Guidance* document on the Department's website at https://immi.homeaffairs.gov.au/Documents/citizenship-client-guidance.pdf or scan the QR Code below:

[QR code]

*...a citizenship ceremony*
*...application is approved...* [text cut off at bottom]

Liz Fong-Jones (方禮真)@lizthegrey· May 12

Come find me at the Dev Community Zone! I am (assisted by @koogh.com) doing a set of demos around integrating AWS DevOps Agent and observability tooling to debug faster! #awssummitsydney

Liz Fong-Jones (方禮真)@lizthegrey· May 9

also I really should log off lol

Made over 100 replies yesterday
In the last 24 hrs this account made more than 100 replies or quote-replies.

Appeal
Source: ‪@stechlab-labels.bsky.social‬
Expires in 3h

Liz Fong-Jones (方禮真)@lizthegrey· May 7

this talk which I just gave two hours ago

30 to 70 PRs a day: how we managed to not wreck our systems

Liz Fong-Jones (方禮真)@lizthegrey· May 4

and also have a look at this graph showing % of codebase that we can prove was last modified or created with AI assistance: if you're curious how we managed to not ensloppify everything or collapse under our own weight of reviews and code maintenance, come to my talks!

Stacked area chart titled "Hound (2024+): AI-attributed floor on top of un-attributed baseline (red is a lower bound)".

**Axes:** X axis spans from approximately 2024-01 to 2026-04. Y axis is labelled "Lines of code (cumulative, surviving)" and runs from 0 to 1×10⁶ (1 million), with gridlines at 0.25M, 0.50M, 0.75M, 1.00M, 1.25M, 1.50M, 1.75M. A horizontal dotted reference line is drawn at 1.50M.

**Legend:**
- Cyan/teal area: "Lines without AI attribution"
- Red/coral area: "Lines with AI attribution (floor)"

**Annotations:**
- Top right in red: "Total: 1.88M (≥373k AI-attributed, ≥19.8% of HEAD)"
- Mid-right in dark grey: "Without AI attribution: 1.51M lines"

**Chart description:**

The cyan area begins at approximately 0.75M lines in early 2024 and grows steadily and continuously throughout the period, reaching approximately 1.51M lines by April 2026.

The red area (AI-attributed lines) is absent until approximately mid-2024 (around 2024-07), when it begins appearing as a thin band on top of the cyan area. It grows slowly through late 2024, then accelerates markedly from approximately 2025-01 onward. By 2026-04, the red area adds approximately 370k lines on top of the cyan baseline, bringing the combined total to approximately 1.88M lines. The red area's growth rate visibly steepens in early 2026, with the combined stack rising well above the 1.50M dotted reference line.

The chart represents surviving lines of code in the Hound repository from 2024 onward, with AI-attributed contributions constituting a lower-bound estimate of at least 19.8% of the current codebase HEAD.

Liz Fong-Jones (方禮真)@lizthegrey· May 4

oh ps have a fun graph: PRs landed on main per day, and time it took CI to validate them. Can you spot the point we switched to a system that only runs tests if the test dependencies changed? Also, notice the slope of the PRs/day curve changes *well* before that.

Two stacked Honeycomb charts sharing a common time axis from Mon Sep 8 to approximately Mon Apr 27, covering roughly 8 months of data.

**Chart 1: COUNT**
Line chart, Y axis 0–80. A blue line tracks daily or weekly counts throughout the period. From Sep 8 through roughly Feb 23, the line fluctuates in a regular oscillating pattern between approximately 10 and 35, with a notable dip toward near-zero around Mon Dec 29. From late February onward, the amplitude and baseline both increase significantly, with peaks reaching 50–80 and a more volatile, spiky pattern through March and April. The overall trend is a clear upward shift in volume in the final two months.

**Chart 2: HEATMAP(duration_min)**
Heatmap, Y axis 0–25 (representing duration in minutes). Legend on the right shows counts: 21 (dark navy), 9, 8, 1 (light teal/cyan).

From Sep 8 through approximately Feb 23, the heatmap shows a sparse, consistent cluster of light teal squares concentrated in the 5–10 minute range, with occasional outliers up to 15–20 minutes. The distribution is relatively stable and low-density throughout this period, with a near-gap around Dec 29 matching the COUNT dip above.

From approximately Mon Mar 23 onward, the heatmap changes character markedly: density increases substantially (darker navy and mid-blue squares appear, indicating counts of 8–21 per bucket), and the distribution shifts downward, with a dense cluster appearing at 0–5 minutes alongside continued activity at 5–10 minutes. This suggests that in late March and April, sessions became both more frequent (per the COUNT chart) and bimodal, with a new population of very short-duration sessions appearing alongside the pre-existing 5–10 minute sessions.

Liz Fong-Jones (方禮真)@lizthegrey· Apr 29

neither of these are reliable sources. just open the WSJ website directly yourself, and link directly to it. even if there's a paywall, you'll at least get the headline.

Faytuks Network
‪@faytuksnetwork.bsky.social‬

Follow
US officials say the conflict with Iran is unlikely to end with a nuclear deal, and a resumption of the war is unlikely. Trump is comfortable with an indefinite blockade - WSJ
6:15 PM · Apr 28, 2026

Everybody can reply
11 reposts
31 quotes
44 likes
1 save

Liz Fong-Jones (方禮真)@lizthegrey· Apr 26

this: (original by @mikesenters.bsky.social)

whstancil, golikehellmachines, sky, rince, etc. liked by the shooter

Liz Fong-Jones (方禮真)@lizthegrey· Apr 26

Full image with full alt text:

Liz Fong-Jones (方禮真)@lizthegrey· Apr 18

the ad is not listed under adstransparency.google.com/advertiser/A... or adstransparency.google.com/advertiser/A... so Google has taken action. The stripe api key still appears to be live, unfortunately :(

donation summary
payment amount $1,000
giving frequency one time
donation total $1,000
donate with stripe payment element

fully rendered payment interface

Liz Fong-Jones (方禮真)@lizthegrey· Apr 18

One of the most satisfying graphs I've seen in my career, thanks to continuous profiling, Claude, and my amazing teammates.

Honeycomb graph showing COUNT_DISTINCT(k8s.pod.name) steady-state at 100, rising to 170 during incident, falling to 120 after mitigation up to 150 during second incident phase, and finally dropping to 100 from 150 once the final optimisation landed.

cpu usage graph showing widening of CPU bands and a sharp spike in p50 from 12 to 18 vCPU per process, forcing the 50% task count increase shortly after. sharp dips in vcpu usage from 12 to 9 and then from 13 to 12, then from 12 to *8* during the final recovery

Liz Fong-Jones (方禮真)@lizthegrey· Apr 17

www.youtube.com/USHouseClerk...

ON AGREEING TO THE RESOLUTION H RES 1175
REPUBLICAN 191 YEA 20 NAY 6 NV
DEMOCRATIC 4 YEA 208 NAY 1 NV
INDEPENDENT 1 YEA
TOTALS: 196 YEA 228 NAY 7 NV
TIME REMAINING 0:00

Liz Fong-Jones (方禮真)@lizthegrey· Apr 17

👀👀👀 xcancel.com/RepJayapal/s...

Rep. Pramila Jayapal

@RepJayapal
I just reviewed the classified document from
@RonWyden
about the abuses of FISA Section 702.

I’m even more disturbed now about the secret interpretation of Section 702 that affects privacy rights. This information should be declassified before any reauthorization vote takes place. We have to protect the privacy rights of all Americans.
3:16 PM · Apr 16, 2026
·
19K
Views
50 replies, 266 reposts, 788 likes, 52 bookmarks

Liz Fong-Jones (方禮真)@lizthegrey· Apr 17

yup, it looks like any correspondence with customersupportcmmail@amtrak.com and the associated records would have been leaked.

amtrak customer support duplicate receipt dear customer thank you for contacting...

Liz Fong-Jones (方禮真)@lizthegrey· Apr 17

would not have been able to land 4 intricate critical-path latency PRs in 24 hours, or 18 broader performance improvement PRs in a single week without the help of both really good telemetry, and solid AI code-reading / code-writing assistance, and solid AI code review to help the human reviewers.

Shepherd Performance: Week of April 7-14, 2026
Author: Liz Fong-Jones (Technical Fellow, on loan from Marketing)

Context: Incident-266 incident response + systematic profiling-driven optimization

Duration: 7 days, 18 PRs shipped (across hound, libhoney-go, and beeline-go)

Executive Summary
Shepherd now handles 27% more Kafka throughput ((redacted) msgs/sec) at similar pod count (~100 steady-state) with 50% less memory per pod (32GB to 16GB).

Per-datapoint ingest cost dropped across the board, with the incident-triggering customer (redacted) seeing a 94% reduction in p99 request latency (16s to under 1s).

Every metrics customer benefits: non-(redacted) p99 improved 48%.

Liz Fong-Jones (方禮真)@lizthegrey· Apr 16

well, I guess I have my answer as to how much Claude I've been using

**Alt text:**

Claude usage statistics dashboard. Tab navigation: "Overview" (selected), "Models". Time filter buttons top right: "All" (selected), "30d", "7d".

**Summary stats (8 tiles in a 4×2 grid):**

- Sessions: **575**
- Messages: **76,214**
- Total tokens: **9.6M**
- Active days: **42**
- Current streak: **3d**
- Longest streak: **5d**
- Peak hour: **09**
- Favorite model: **claude-opus-4-6**

**Activity heatmap:** A grid of squares (approximately 7 rows × 18 columns) representing usage over time. The left portion of the grid is mostly grey (inactive), activity picks up roughly in the middle columns with scattered light and medium blue squares, and the rightmost columns are densely filled with light to medium blue squares indicating consistently high recent activity. A few dark navy blue squares appear at peak usage days.

**Footer text:** "You've used ~154× more tokens than The Great Gatsby."

Liz Fong-Jones (方禮真)@lizthegrey· Apr 14

damn, the spam ring is popping a bunch of very old accounts.

Lolo And Amoon FAmily
@cgimustacheman.bsky.social
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registration and history:
User @cgimustacheman.bsky.social registered 9/18/2023 at PDS: https://bsky.social
11/12/2023 mushroom migration to PDS: https://lionsmane.us-east.host.bsky.network

Lolo And Amon
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User changed handle to @tzarrr.bsky.social 10/28/2023
11/8/2023 mushroom migration to PDS: https://puffball.us-east.host.bsky.network

Liz Fong-Jones (方禮真)@lizthegrey· Apr 13

boom.

Stripe Support <support@stripe.com>
4:43 PM (28 minutes ago)
to me

Hi there,

Thank you for reaching out to us and for bringing this to our attention. I can see that you are providing evidence about a merchant that is violating our policies by impersonating a funding website. I'm here to give you an update.

Jumping right to the subject, I've escalated this internally so that we can investigate the business and if it breaches our Services Agreement based on the information you have given and all the evidence you've provided. I appreciate you might want to know the outcome of our investigation. However, for privacy reasons, we can only share the information of the outcome with the business. The privacy of businesses (and end-customers like you) who use Stripe is of the utmost importance to us.

Saying that, please know Stripe takes fraud extremely seriously, and we do have extensive safeguards in place which are constantly improving. We will take appropriate action if it’s deemed necessary after our investigation. If it looks like we didn't take action, it’s because we found sufficient evidence that the business is following our Services Agreement, but I can assure you our investigations are thorough, and we take every flag seriously.

Thank you for flagging the merchant and for your understanding. Please let us know if any questions arise.

Regards,

Liz Fong-Jones (方禮真)@lizthegrey· Apr 12

I'll raise you: