Yadnesh Salvi

Archive · 24 issues

The archive

Every issue, nothing gated. The archive is the sample: if the last two weeks read well to you, the email will too.

  1. Daily

    Split an MCP injection across two channels and resistant models leak at 100%

    Plus: reward hacking at 57.2% of rollouts, and Exa searches the web by date. 5 min.

    Sep 18, 2026 · 5 min

    Three pipes enter the frame from different sides, each carrying a short paper strip with a few words on it. The pipes meet at a funnel, and past it the three strips lie end to end on one band whose words run in a continuous line toward a small open door.
  2. Daily

    Every audited chat tokenizer lets prompt text forge control tokens

    Plus: 91% of audited vibe-coded deployments shipped a hole. 5 min.

    Sep 17, 2026 · 5 min

    A mechanical sorter feeds small tags into a slot on a machine. Most are stamped metal plates reading SYSTEM and TOOL. One is a sheet of ordinary typed paper with TOOL written on it by hand, going into the same slot.
  3. Daily

    A shell beats a typed tool catalog, and agents barely report their work

    Plus: an MCP registry census, four AI Engineer talks, one very late transcription. 5 min.

    Sep 16, 2026 · 5 min

    A plain terminal window on the left and a tall cabinet of many small labelled drawers on the right. One short line runs from a small robot through the terminal; a much longer line winds through drawer after drawer. Both lines end at the same document above.
  4. Daily

    An agent deleted an AML control, and benchmark scaffolds do the model's work

    Plus: OpenAI's 10,000-agent proof, a 297-iteration model loop, MCP merges Skills. 6 min.

    Sep 14, 2026 · 6 min

    Thirteen identical signposts form a fence across a field. One lies flat on the ground, and a small robot steps through the gap holding a sheet of paper out in front of it. A large check mark floats behind the fence.
  5. Daily

    Per-phase model routing cuts agent cost, RASER on Slurm, Amp steers mid-run

    Plus: 2 papers, a context-mode split, and OpenAI's Navier-Stokes claim. 5 min.

    Sep 09, 2026 · 5 min

    Four small workstations in a row on a bench, linked by a thin line, with a paper ticket travelling between them and a coin slot of a different size beside each.
  6. Daily

    Prefix caching changes agent runs, and cross-family reviewers beat self-review

    Plus: a harness that moves solve rates 4x, and 883 commits to nowhere. 6 min.

    Sep 08, 2026 · 6 min

    Two identical text strips enter a box; one is partly taken from a shelf of stored slices, the other read fresh. Their exit paths fork and wind through a grid of small tool icons to different endpoints.
  7. Daily

    GPT-6 Astra's score hinges on its harness, and agents rot geometrically with each step

    Plus: Cursor agents in Vercel microVMs, Composio's six missing primitives, ACLE-MCP. 5 min.

    Sep 04, 2026 · 5 min

    Two identical machine cores on a workbench. The left one is wrapped in pipes and a feedback loop with a gauge reading near full. The right one is bare with a single pipe and a gauge reading past halfway.
  8. Daily

    Google's Mantis bug-fixing harness, and privilege escalation in 12 agent harnesses

    Plus: Cline's 11M-user rollout, ContextPipe, and Claude driving your desktop. 5 min.

    Sep 03, 2026 · 5 min

    A side view of a four-station assembly line. A magnifying glass, a sorting tray, a sealed bell jar holding a beetle with a gauge, and a workbench with a patch. Small clipboard figures inspect each station from above. A gate sits between the jar and the workbench.
  9. Daily

    Anthropic's deliberately misaligned model, Fable 5.1, and a fix for reward hacking

    Plus: escalation channels cut reward hacking, memory that rots, Copilot approvals. 6 min.

    Sep 02, 2026 · 6 min

    An overhead view of a looping training track with hurdles and a scoreboard at the finish. A dotted trail leaves the track through a gap, crosses behind the course and climbs the scoreboard, where a small figure holds a wrench.
  10. Daily

    Realistic prompts drop coding-agent scores, and tool filtering beats prompt rules

    Plus: 7 papers, 2 releases, one empty-handed mugger. 5 min.

    Sep 01, 2026 · 5 min

    A machine with one visible gear takes in two paper slips, one long and typed, one short and crumpled, and sends out two copies of the same part, one complete and one missing a piece.
  11. Daily

    Maersk's 100,000 corrections, preference-trap evals, and Tencent's Hy4 Preview

    Plus: guardrails at Navan, a one-way fiber, and the benchmark card that names its scaffold. 5 min.

    Aug 31, 2026 · 5 min

    A diagram of two nested loops: a small loop circles a robot at a desk, and a much larger loop around it runs through pinned screenshots, a shelf of procedure cards, and small figures making corrections.
  12. Daily

    A website summary hijacks Claude Code Auto Mode, and handoffs turn must into maybe

    Plus: ToolMinimize, StarHarness, Cursor in the AI SDK harness layer. 6 min.

    Aug 28, 2026 · 6 min

    A web page on the left, a ribbon of its text passing through an open gate with an empty stool beside it, ending as the prompt line inside a terminal window on the right.
  13. Daily

    Compaction erases agent safety rules, and CLAUDE.md prose isn't a control

    Plus: Vercel's Run SDK, Scroll's executable context, and why the brainstorm converged. 5 min.

    Aug 26, 2026 · 5 min

    Five frames in a row, each holding a shorter version of a text sheet, with one heavy line that fades out by the fourth frame.
  14. Daily

    Poisoned agent memory beats screening, and prompt rules keep failing as boundaries

    Plus: bash-sed-cat at AIDAChip, a breach in Thailand, 8 quick links. 5 min.

    Aug 25, 2026 · 5 min

    A wall of small filing drawers behind a checkpoint desk. A guard robot stamps a queue of identical index cards approved while a mechanical arm hands one retrieved card to a second robot.
  15. Daily

    v0 keeps OAuth tokens out of generated code, plus SkillGate and Temporal's harness

    Plus: 4 papers, 2 talks, and a meme about durable execution. 5 min.

    Aug 21, 2026 · 5 min

    A transparent box containing a computer and a code-covered paper. An arrow exits through a slot, passes a guard booth outside the box where a mechanical arm adds a key to it, then continues to a warehouse marked with a snowflake. The only key hangs inside the booth.
  16. Daily

    Malicious skills hijack agents mid-task, and debate training curbs reward hacking

    Plus: an unverified OpenAI sandbox story and a fail-closed runtime. 5 min.

    Aug 20, 2026 · 5 min

    A map with a start flag and a finish flag connected by a faint dotted line, while a bold path detours in a wide loop through three tollbooths before rejoining and reaching the finish, marked with a checkmark.
  17. Daily

    Aborted agent branches live on in the KV cache, plus StateM's harness scaling

    Plus: coherence debt, the recall trap, Cline's open-weight evals. 5 min.

    Aug 19, 2026 · 5 min

    A diagram of two stacked pages of text. The upper page has one paragraph crossed out; the lower page shows the same paragraph intact. A small cube to the right sends thin arrows to the intact paragraph on the lower page.
  18. Daily

    Deno's Claw Patrol treats agents as untrusted software, and full history beats compaction

    Plus: 6 papers, 2 talks, a 56,000-line Fortran migration. 5 min.

    Aug 18, 2026 · 5 min

    A robot on the left holds pipes that pass through inspection windows in a central wall before reaching a database, servers and a chat bubble on the right; a key ring hangs on the far side of the wall.
  19. Weekly #1

    The score and the job came apart

    Plus: a 1983 paper that explains this week, and a privacy leak nobody has confirmed. 8 min.

    Aug 10 to Aug 16, 2026 · 8 min

    A tall measuring stick stands alone on a rolling plain while a small figure at its base looks away from it toward a tangle of forking paths that run off into the distance.
  20. Daily

    Agent leaderboards rank specialization, and the harness thesis reaches robots

    Plus: 4 papers, 3 launches, one shattered mug. 5 min.

    Aug 14, 2026 · 5 min

    A ranked bar chart with a trophy beside it dissolves toward the right into a scattered cloud of small squares at random heights.

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