propose failure surfaces as bare AcpxError exit 1 — no prompt-size hint when the synthesis prompt is too large
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 52/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Active
- Tech stack
- javascript
- Domain
- backend
Research direction
Start by locating the synthesis/propose call and the code that assembles its prompt, then trace how failures become AcpxError and exit 1. Compare the failure path with the separate skillsDir workspace-copy issue mentioned in the report. Done means an oversized prompt failure gives users a clear size-related hint rather than an indistinguishable generic error.
Written by the indexing model from the issue text.
Description
Setup: backpass 0.1.8, codex agent via acpx.
What happens: when the synthesis/propose call fails because the prompt is oversized (in our case inflated by the skillsDir workspace-copy issue I filed separately), the run ends with a bare AcpxError and exit 1. There is no indication that prompt size was the cause, which makes the failure look like an auth or harness problem.
Suggested fix: log the assembled prompt size (bytes/tokens estimate) on synthesis failure — or preflight it against a configurable ceiling with a clear error — so users can distinguish "prompt too big" from "agent broken".
- Dominant language
- JavaScript
- Stars
- 1.5k
- Forks
- 120
- Avg merge
- 1d 52m
- Merged PRs (30d)
- 28
Getting set up
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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