--- title: "#systems articles | Hashnode" description: "Explore 42 articles tagged #systems on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/systems" --- Tag # #systems 42 posts · 2 followers [99 sunny](https://hashnode.com/@sunny99x) · [Sep 23](https://hashnode.com/posts/long-term-memory-is-compression-not-retrieval/6ab4194168eb9302c39cb6c4) ### [Long-term memory is compression, not retrieval](https://sunny99.hashnode.dev/long-term-memory-is-compression-not-retrieval?utm_source=hashnode&utm_medium=feed) Epistemic status: A design note. The motivating failure is from a long-form narrative agent I ran. One ICLR 2026 workshop paper supplies the measurement. Scope is at the end. Related: Chen, Epistemic 8 min read · [sunny99.hashnode.dev](https://sunny99.hashnode.dev/long-term-memory-is-compression-not-retrieval?utm_source=hashnode&utm_medium=feed) [3](https://hashnode.com/posts/long-term-memory-is-compression-not-retrieval/6ab4194168eb9302c39cb6c4) [ConnectedResearchers](https://hashnode.com/@connectedresearchers) · [Aug 9](https://hashnode.com/posts/phoenix-treats-refresh-drift-as-a-recoverable-runtime-state/6a77ddba39211c16b4cff081) ### [Phoenix Treats Refresh Drift as a Recoverable Runtime State](https://connectedresearchers.hashnode.dev/phoenix-treats-refresh-drift-as-a-recoverable-runtime-state?utm_source=hashnode&utm_medium=feed) Phoenix breaks DDR5 TRR by detecting missed refreshes and repairing phase. A technical reading of the evidence, exploit, limits, and design lesson. 7 min read · [connectedresearchers.hashnode.dev](https://connectedresearchers.hashnode.dev/phoenix-treats-refresh-drift-as-a-recoverable-runtime-state?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 9](https://hashnode.com/posts/schema-is-a-second-surface/6a51867c1dc65ba52a2e57ce) ### [Schema Is a Second Surface](https://danmercede.hashnode.dev/schema-is-a-second-surface?utm_source=hashnode&utm_medium=feed) Short Essay · 2026-07-09 · 01:20 AM PT Claim: On a prerendered SPA, a copy reframe has to land on two independent surfaces, not one. The visible React copy auto-bakes into the crawler HTML. The head J 2 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/schema-is-a-second-surface?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 7](https://hashnode.com/posts/vet-the-ai-pr-fleet/6a51867b1dc65ba52a2e5780) ### [Vet the AI PR Fleet](https://danmercede.hashnode.dev/vet-the-ai-pr-fleet?utm_source=hashnode&utm_medium=feed) Short Essay · 2026-07-07 · 02:35 PM PT Claim: Merging a queue of AI-authored pull requests is not a rubber stamp. Three failure modes hide in the queue, and each needs verify-before-you-trust, not bli 2 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/vet-the-ai-pr-fleet?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 6](https://hashnode.com/posts/recon-vs-prior-decisions/6a51867a1dc65ba52a2e5767) ### [Recon vs Prior Decisions](https://danmercede.hashnode.dev/recon-vs-prior-decisions?utm_source=hashnode&utm_medium=feed) Short Essay · 2026-07-06 · 12:20 AM PT Claim: A fresh recon-and-synthesis agent sees only live system state, not the decisions you already made about it, so it will confidently recommend something you 2 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/recon-vs-prior-decisions?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 5](https://hashnode.com/posts/cut-agent-web-read-tokens/6a5186791dc65ba52a2e5738) ### [Cut Agent Web-Read Tokens](https://danmercede.hashnode.dev/cut-agent-web-read-tokens?utm_source=hashnode&utm_medium=feed) Experiment Log · 2026-07-05 · 03:40 PM PT Raw HTML can burn 80 percent of an agent's context. Extract-first fetching keeps only the signal. Hypothesis: Converting a page to markdown before the model 1 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/cut-agent-web-read-tokens?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 5](https://hashnode.com/posts/pr-merge-train-gotchas/6a51867a1dc65ba52a2e5753) ### [PR-Merge Train Gotchas](https://danmercede.hashnode.dev/pr-merge-train-gotchas?utm_source=hashnode&utm_medium=feed) Short Essay · 2026-07-05 · 12:15 AM PT Claim: Merging a stack of PRs into one branch has host-side mechanics that silently skip half your queue if you script it naively. Merged fourteen PRs into one r 3 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/pr-merge-train-gotchas?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 4](https://hashnode.com/posts/benchmarks-evict-hot-models/6a5186781dc65ba52a2e5711) ### [Benchmarks Evict Hot Models](https://danmercede.hashnode.dev/benchmarks-evict-hot-models?utm_source=hashnode&utm_medium=feed) Experiment Log · 2026-07-04 · 12:15 AM PT Hypothesis: Benchmarking a locally-served LLM is read-only and won't disturb whatever model is already loaded on the GPU. Constraint: One 24GB GPU, a single ~ 1 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/benchmarks-evict-hot-models?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 3](https://hashnode.com/posts/don-t-index-your-system-of-record/6a51867676c83d9ee6b6dcef) ### [Don't Index Your System of Record](https://danmercede.hashnode.dev/don-t-index-your-system-of-record?utm_source=hashnode&utm_medium=feed) Thought Snippet · 2026-07-03 · 08:40 AM PT Went to drop a PDF into an agent's knowledge vault today and hit the right instinct by accident: the vault's ingest crawler explicitly excludes its own direc 1 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/don-t-index-your-system-of-record?utm_source=hashnode&utm_medium=feed) [Dan Mercede](https://hashnode.com/@danmercede) · [Jul 1](https://hashnode.com/posts/recheck-what-you-rejected/6a5186741dc65ba52a2e5672) ### [Recheck What You Rejected](https://danmercede.hashnode.dev/recheck-what-you-rejected?utm_source=hashnode&utm_medium=feed) Short Essay · 2026-07-01 · 12:45 AM PT Claim: A negative decision stored in an agent's memory ('we evaluated X and rejected it') is the most dangerous kind of stale fact, because it reads as settled a 2 min read · [danmercede.hashnode.dev](https://danmercede.hashnode.dev/recheck-what-you-rejected?utm_source=hashnode&utm_medium=feed)