Review memory improvements and prompt IR

Pipeline: dev completed (run=dev-t-481-1771506936, cost=0.0c)

Pipeline: verification failed: Build failed for Omni/Agent/Memory.hs (exit 1): 7[10000;10000H7[10000;10000Hthese 15 derivations will be built: /nix/store/0m5fa2krxa2d7m1rd67xnplb90yj9vbw-hs-mod-Omni_Agent_Prompt_IR.drv /nix/store/wrciq3ha3bcvsvdjjjphm4ispziykj2k-hs-mod-Omni_Agent_Trace.drv /nix/store/ppsjkiss9gjb8xvsmalw6lfbk98ajbjk-hs-mod-Omni_Agent_Op.drv /nix/store/q7hgi5s3invwnf0w760d272ix9qs6b69-hs-mod-Omni_Agent_Prompt_Hydrate.drv /nix/store/kkmxaw0ks2y1ndih75clcsjsq4wc7dy9-hs-mod-Omni_Agent_Models.drv /nix/store/rvrifzh4ra6glx7w7p4znb7z0pgjbwi5-hs-mod-Omni_Agent_Provider.drv /nix/store/ylwsiw8a9dr2ljc9siwn876bv7gizmnf-hs-mod-Omni_Agent_Prompt_Compile.drv /nix/store/1rvmi1gvjf7189zwji67mqagjpnf247r-hs-mod-Omni_Agent_Interpreter_Sequential.drv /nix/store/rwzsc50issjjj8k3i0x582z269j4vv93-hs-mod-Omni_Agent_Programs_Compaction.drv /nix/store/5nq5vlkv0gh767bhyvbdilsjch8fpanb-hs-mod-Omni_Agent_Programs_Agent.drv /nix/store/lgpvbrwgjmlp7d0vphgigwn6ik39klbf-hs-mod-Omni_Time.drv /nix/store/x0q0anj5xyg8pmdl2hq1cw17p6jh4qa9-hs-mod-Omni_Agent_Engine.drv /nix/store/znnyv7vfxz8gky4vh7b176wwnljam8w4-hs-mod-Omni_Agent_Op_Bridge.drv /nix/store/wbh196c0qbid8yssmqfrw8khhbz9a5d8-hs-mod-Omni_Agent_Memory.drv /nix/store/jnd051d6x0i540d3r1715y7ppi19syqb-omni-agent-memory.drv building '/nix/store/kkmxaw0ks2y1ndih75clcsjsq4wc7dy9-hs-mod-Omni_Agent_Models.drv'... building '/nix/store/0m5fa2krxa2d7m1rd67xnplb90yj9vbw-hs-mod-Omni_Agent_Prompt_IR.drv'... building '/nix/store/wrciq3ha3bcvsvdjjjphm4ispziykj2k-hs-mod-Omni_Agent_Trace.drv'... building '/nix/store/lgpvbrwgjmlp7d0vphgigwn6ik39klbf-hs-mod-Omni_Time.drv'...

Omni/Agent/Models.hs:35:1: error: Could not find module Data.Yaml' Use -v (or :set -v in ghci) to see a list of the files searched for. | 35 | import qualified Data.Yaml as Yaml | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: builder for '/nix/store/kkmxaw0ks2y1ndih75clcsjsq4wc7dy9-hs-mod-Omni_Agent_Models.drv' failed with exit code 1; last 7 log lines: > > Omni/Agent/Models.hs:35:1: error: > Could not find module Data.Yaml' > Use -v (or :set -v in ghci) to see a list of the files searched for. > | > 35 | import qualified Data.Yaml as Yaml > | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ For full logs, run: nix log /nix/store/kkmxaw0ks2y1ndih75clcsjsq4wc7dy9-hs-mod-Omni_Agent_Models.drv error (ignored): error: cannot unlink "/tmp/nix-build-hs-mod-Omni_Time.drv-0/build": Directory not empty error: 1 dependencies of derivation '/nix/store/jnd051d6x0i540d3r1715y7ppi19syqb-omni-agent-memory.drv' failed to build

[1A[1G[2K[+] Omni/Agent/Memory.hs [1A[1G[2K[0m[…] Omni/Agent/Memory.hs[0m[1B

[1A[1G[2K[+] Omni/Agent/Memory.hs [1A[1G[2K[~] Omni/Agent/Memory.hs: warning: you did not specify '--add-root'; the res...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: /nix/store/jnd051d6x0i540d3r1715y7ppi19syqb-omni-a...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: these 15 derivations will be built:…[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: /nix/store/0m5fa2krxa2d7m1rd67xnplb90yj9vbw-hs-m...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: /nix/store/lgpvbrwgjmlp7d0vphgigwn6ik39klbf-hs-m...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: building '/nix/store/kkmxaw0ks2y1ndih75clcsjsq4wc7...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: building '/nix/store/0m5fa2krxa2d7m1rd67xnplb90yj9...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: building '/nix/store/wrciq3ha3bcvsvdjjjphm4ispziyk...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: building '/nix/store/lgpvbrwgjmlp7d0vphgigwn6ik39k...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: Omni/Agent/Models.hs:35:1: error: Could not fin...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: error: builder for '/nix/store/kkmxaw0ks2y1ndih75c...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: error (ignored): error: cannot unlink "/tmp/nix-bu...[1B[1A[1G[2K[~] Omni/Agent/Memory.hs: error: 1 dependencies of derivation '/nix/store/jn...[1B[0m[38;5;1m[2Kfail: bild: realise: Omni/Agent/Memory.hs [0m[0m [0m[1A[1G[2K[0m[38;5;1m[x] Omni/Agent/Memory.hs[0m[1B 1

Pipeline scheduler: failed to spawn agentd run

Pipeline scheduler: failed to spawn agentd run

Pipeline scheduler: started run=pipeline-omni-agent-memory-hs-t-481-1771554731 domain=Omni/Agent/Memory.hs

Pipeline scheduler reset stale run pipeline-omni-agent-memory-hs-t-481-1771554731 (agentd reported running but no active container). Returning task to Open for requeue.

Pipeline scheduler: started run=pipeline-omni-agent-memory-hs-t-481-1771560346 domain=Omni/Agent/Memory.hs

Pipeline scheduler: run=pipeline-omni-agent-memory-hs-t-481-1771560346 domain=Omni/Agent/Memory.hs status=done cost=24c (fund-spend=failed)

Ava triage: pipeline auto-run reached status=done but the agent made NO git commits and reported blockers (missing files, path mismatches, or need clarification). This task is not actually in review — there's nothing to review. Resetting status to Open so it can be re-scoped.

ORPHAN COMMIT: coder agent produced commit 68c0a843b09d641a77a38719a120657aad100e09 on 2026-02-19 but it was never merged into live and is only reachable via the branchless reflog. Pipeline scheduler bug — see separate task. To recover: git cherry-pick 68c0a843b09d641a77a38719a120657aad100e09 from omni/live (expect conflicts after 6+ weeks of drift). Otherwise re-implement from scratch against current HEAD.

test