{"id":"letta-code--gh-letta-ai-letta-code","name":"Letta Code","url":"https://github.com/letta-ai/letta-code","page":"https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/letta-code--gh-letta-ai-letta-code","family":"memory","section":"Coding-agent memory","sections":["Coding-agent memory"],"tier":3,"last_verified_at":"2026-10-29","lifecycle":{"status":"active","severity":0,"note":null},"taxonomy":{"storage":[{"value":"file","primary":true,"reason":null},{"value":"relational","primary":false,"reason":null}],"retrieval":[{"value":"injection","primary":true,"reason":null},{"value":"agentic","primary":false,"reason":null}],"persistence":[{"value":"long-term","primary":true,"reason":null}],"update":[{"value":"agent-controlled","primary":true,"reason":null},{"value":"consolidation","primary":false,"reason":null}],"unit":[{"value":"file","primary":true,"reason":null},{"value":"skill","primary":false,"reason":null},{"value":"episode","primary":false,"reason":null}],"governance":[{"value":"auditable","primary":true,"reason":null},{"value":"inspectable","primary":false,"reason":null}],"conflict":[{"value":"agent","primary":true,"reason":null},{"value":"document-version","primary":false,"reason":null}]},"cells":{"type":{"value":"Framework","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"desc":{"value":"Letta's stateful coding-agent harness: agents rewrite their own memory blocks and skills, version context in git via MemFS (syncable to GitHub) and reflect via a periodic /sleeptime 'dreaming' process. from Letta (MemGPT) team. letta-ai/letta-code is now the main Letta source (harness, terminal UI, App Server, channels); the Letta V1 API server was retired to the archive branch of letta-ai/letta.","citation":"https://raw.githubusercontent.com/letta-ai/letta/main/README.md","status":"real-data","tier":"T2","source_class":"repo"},"claims":{"value":"Stateful agents that are like people, with memory, identity, and the ability to learn and adapt","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"modalities":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"created":{"value":"2025-10-25","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"latest-release":{"value":"last commit 2026-10-22","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"license":{"value":"Apache-2.0","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"gh":{"value":"https://github.com/letta-ai/letta-code (3683★)","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"mindshare":{"value":"3683 GitHub stars","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"citations":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"funding":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"customers":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"pricing":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"compliance":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"data-handling":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"deployment":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"hq":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"founders":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"volume":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"perf":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"repro":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"code-release":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"api-surface":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"latency":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"throughput":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"backend-storage":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"multi-tenancy":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"encryption":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"sso-rbac":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"embedding-model":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"consistency":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"versioning":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"tombstoning":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"schema-evolution":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"namespace":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"contradiction":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"forgetting":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"mcp-support":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"a2a-support":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"otel":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"webhooks":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"import-export":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"integration-count":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"orchestration":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"programmatic-control":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"vendor-benchmarks":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"pricing-specifics":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"agent-abstraction":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"memory-primitives":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"llm-lock":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"runtimes":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"session-handling":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"validated-verticals":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"time-to-running":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"anti-fit":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"optimised-for":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"adjacent-infrastructure":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"pros":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cons":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"links":{"value":"https://github.com/letta-ai/letta-code","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"obs-langsmith":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-opentelemetry":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-datadog":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-helicone":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-weave":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-langfuse":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-arize":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"obs-custom":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-token-budget":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-prompt-caching":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-semantic-caching":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-batching":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-model-routing":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-streaming-only":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-observability-cost-attribution":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-langsmith-evals":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-braintrust":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-weights-and-biases-agent":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-helicone-evals":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-custom-test-harness":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-human-loop":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"eval-production-traffic-replay":{"value":"no","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"commit-trajectory":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"citation-trajectory":{"value":"not applicable — non-paper row","citation":null,"status":"not-applicable","tier":"T3"},"download-trajectory":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-input-usd-per-mtok":{"value":"not applicable — non-hosted pricing model","citation":null,"status":"not-applicable","tier":"T3"},"cost-output-usd-per-mtok":{"value":"not applicable — non-hosted pricing model","citation":null,"status":"not-applicable","tier":"T3"},"cost-tier":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"cost-pricing-model":{"value":"unknown","citation":null,"status":"estimate","tier":"T3"},"cost-last-verified":{"value":"searched not found","citation":"https://github.com/letta-ai/letta-code","status":"depth-floor-reached","tier":"T1","source_class":"repo"},"capability-composite-score":{"value":"(LLM unverified)","citation":null,"status":"estimate","tier":"T3"},"capability-band":{"value":"(LLM unverified)","citation":null,"status":"estimate","tier":"T3"},"capability-benchmark-sources":{"value":"(LLM unverified)","citation":null,"status":"estimate","tier":"T3"},"capability-last-verified":{"value":"(LLM unverified)","citation":null,"status":"estimate","tier":"T3"},"use-case-tags":{"value":"(LLM unverified)","citation":null,"status":"estimate","tier":"T3"},"use-case-anti-tags":{"value":"(LLM unverified)","citation":null,"status":"estimate","tier":"T3"},"adoption-accelerator":{"value":"","citation":null,"status":"no-data","tier":"T3"},"architecture-deployment-locus":{"value":"hybrid","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"licensing-bucket":{"value":"open-source","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"positioning-platform-vs-product":{"value":"product","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"taxonomy-three-layer-rollup":{"value":"agent-infra","citation":"https://github.com/MrPeppersDev/agent-infrastructure-landscape/blob/main/docs/schema/section-to-three-layer-rollup.json","status":"real-data","tier":"T1","source_class":"repo"},"developer-activity-opendigger":{"value":"{\"activity\":326.58,\"as_of\":\"2026-09\",\"openrank_12mo\":22.44,\"openrank_current\":30.34,\"participants\":76}","citation":"https://oss.open-digger.cn/github/letta-ai/letta-code/openrank.json","status":"real-data","tier":"T2","last_verified_at":"2026-10-28","source_class":"third-party"},"freshness-date":{"value":"2026-10-29","citation":"https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/letta-code--gh-letta-ai-letta-code","status":"real-data","tier":"T2","source_class":"catalog"},"compliance-certifications":{"value":"","citation":null,"status":"no-data","tier":"T3"},"sdk-languages":{"value":"typescript","citation":"https://github.com/letta-ai/letta-code","status":"real-data","tier":"T1","source_class":"repo"},"protocol-support":{"value":"","citation":null,"status":"no-data","tier":"T3"},"maturity":{"value":"","citation":null,"status":"no-data","tier":"T3"}},"corroboration":{"cited_cells":15,"third_party_cells":1},"edges":{"outgoing":[],"incoming":[{"source":"daytona--daytona-io","target":"letta-code--gh-letta-ai-letta-code","type":"integrates-with","evidence":"Daytona docs have a guide for running Letta Code with Daytona sandboxes.","citation":"https://www.daytona.io/docs/en/guides/letta-code/letta-code-agent","verified_at":"2026-10-29"}]},"history":[{"date":"2026-10-23","commit":"c75adbd81b","pr":222,"kind":"added","changes":[]}],"license":"CC-BY-4.0","source":"https://github.com/MrPeppersDev/agent-infrastructure-landscape/blob/main/data/landscape.json"}