13 lines
2.1 KiB
Markdown
13 lines
2.1 KiB
Markdown
# Delegated coding context and artifact access
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Editorial note (2026-10-10): obsolete state terminology is summarized by purpose below; cited IDs, commits and validation results still describe the original investigation, not new executions.
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During T-696 recovery, the parent Coder could read the authoritative Ticket through `ShowTicket`, but default coding SubWorkers did not receive that tool. A delegated task that simply asks a child to reread the Ticket therefore cannot be fulfilled. One child attempted a CLI fallback; this is not an authorized substitute for typed Backend tools. The parent supplied the authoritative Ticket snapshot and relevant requirements instead and retained lifecycle/publish authority.
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Improvement: make the child tool/capability projection explicit in the spawn result, and support passing a bounded authoritative Ticket snapshot with its immutable reference into a child without implying mutation authority. Delegation prompts should include the necessary contract rather than assuming the child has the parent's Backend tools.
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The Bash provider also advertised a full-output spill under the parent's declared readable `bash-output` directory, but `Read` rejected the returned absolute path as outside the attachment scope. The parent did not bypass that rejection; it used smaller bounded queries. Improvement: return a typed read capability/artifact reference for spill output, or ensure the advertised spill path is actually readable through the selected attachment.
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A child spawned with `cwd: tools/web-ux` observed its filesystem attachment rooted there, and sibling `docs`, `web/workspace`, and `target/web-ux` reads were rejected despite explicit sibling scope rules. The tool description says `cwd` changes only the default command directory. The parent stopped the unchanged child and created a root-oriented child with an explicit nonrecursive readable root plus the original bounded sibling rules. Improvement: preserve attachment-relative path identity independently of command cwd, or document the actual child path binding in the spawn result. Capability rejections should remain authoritative, not trigger filesystem/CLI fallbacks.
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