463b72ce96
Oversized plain-text tool results now spill to a session-scoped file and return a bounded preview plus the spill path, so a verbose result stays readable via `read` without consuming the next model request in full. - dsh-spill: minimal SpillFiles seam (saveText → session-scoped SpillPath) - dsh-spill-local: private 0700 session dirs, traversal-safe names, exclusive owner-only writes - dsh-spill-policy: tools/post-execute transformer; no-op unless maxInlineBytes is set; skips read; best-effort on save failure (never turns a success into an isError) web_fetch is the showcase — no tool-specific spill code. The coding-agent example loads the stack so its keyless Loader smoke guards the namespace-plugin export shape. Snapshot gap for a transcript-visible web_fetch spill is recorded in the RFC's Consequences (ACP replay is keyless and cannot hit the web).
1.3 KiB
1.3 KiB
spill/ - spill storage capability family
The tool-output spill capability seam: an abstract storage interface, a local filesystem implementation, and the tool-result policy that uses it. All product packages.
| Package | Role | ctx key |
|---|---|---|
spill/ |
Abstract spill storage seam (saveText — persist oversized tool text to a session-scoped path) |
ctx.spillFiles |
spill-local/ |
Local-filesystem backend: private, session-scoped files with traversal-safe names | (registers on ctx.spillFiles) |
spill-policy/ |
tools/post-execute policy: replaces oversized plain-text results with a preview + spill path |
(no service surface) |
The interface lives at spill/spill/. The split mirrors bash/fs: the seam owns storage only, spill-local owns the filesystem mechanics, and spill-policy owns WHEN to spill and the model-facing notice. Preview mechanics stay in util/retention — the policy composes the two without either owning the other's job.
See the tool output spill RFC for the design rationale, including why final-result spill is separate from tool-owned early spill (bash streams, subagent rollouts) and why creation belongs to the runtime spill seam rather than the model-facing write tool.