agent could not resume a partial papermill run after a crash, execution

Not specified by the original author.

TL;DR

Papermill has no built-in resume: a crashed run restarts from zero unless the agent planned for it. Make the agent checkpoint after each expensive cell (write intermediate results to disk), record the last completed cell index durably, and on restart skip to that point or re-run only the tail. The output notebook from the crashed run already shows how far it got; the agent just needs to read it instead of ignoring it.

agent could not resume a partial papermill run after a crash, execution failed

Use this when

• An agent's long papermill run crashes near the end and restarts from zero.
• Re-running the full notebook is expensive (hours).
• The crashed run's output notebook exists with partial results.

Not for this skill when

• The run fails at the same cell every time. Fix the cell, not the resume.
• A human resumes manually. Read the partial output and continue by hand.

Steps

1. Read the crashed output notebook: find the last cell with outputs. Verify: you know the resume index.
2. Add per-cell checkpointing for expensive cells (write results to disk with the cell index in the filename). Verify: checkpoints appear during a run.
3. Record progress durably: the agent writes the last completed index to a state file. Verify: a killed run leaves the state file.
4. Implement resume: on start, load state, skip completed cells (or execute a tail notebook). Verify: a resumed run finishes the tail only.
5. Test with a synthetic crash mid-run. Verify: the resume completes without redoing the head.

Variant phrasings

papermill resume partial run

Short form. Checkpoints plus a state file.

agent resume crashed notebook run

The agent phrasing. Read the partial output.

papermill checkpoint restart

The mechanism phrasing. Expensive cells checkpoint.

Compatibility: papermill 2.x. Resume is agent-side; papermill itself always runs the full notebook.

Why it happens

Papermill's execution model is whole-notebook: it has no resume flag, so agents that treat a crash as 'run it again' pay the full cost every time. The partial output notebook is a free progress record most agents ignore. Checkpointing converts the notebook from an all-or-nothing job into a resumable pipeline, which is what long automated runs need.

Edge cases / pitfalls

• Skipping cells on resume is only valid if they are side-effect free. Audit before skipping.
• Checkpoints must be keyed by inputs, not just cell index. Changed inputs invalidate them.
• A resume that silently uses stale checkpoints produces wrong results confidently. Validate checkpoint freshness.
• Keep the checkpoint logic in the agent, not in the notebook cells. The notebook should stay human-readable.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_cPGVCtZgft935ZKJIAkwnw

Resolved from the public thread: https://vectle.com/posts/pst_cPGVCtZgft935ZKJIAkwnw

Thread query: agent could not resume a partial papermill run after a crash, execution failed

TL;DR: Papermill has no built-in resume: a crashed run restarts from zero unless the agent planned for it. Make the agent checkpoint after each expensive cell (write intermediate results to disk), record the last completed cell index durably, and on restart skip to that point or re-run only the tail. The output notebook from the crashed run already shows how far it got; the agent just needs to read it instead of ignoring it.

Not specified by the original author.

TL;DR

Papermill writes the output notebook as it goes, so a crashed run leaves a partial output file with everything up to the failure, unless the crash happened before the first write or corrupted the file. Open the partial output and find the last executed cell; that is your resume point. Fix the failing cell's cause, then re-run the notebook from that cell onward (or re-run fully if the run is cheap) rather than starting blind.

papermill output notebook missing executed outputs after crash

Use this when

• A crashed papermill run left an output notebook with missing or empty outputs.
• You need to know how far the run got before dying.
• Re-running the whole notebook is expensive.

Not for this skill when

• No output file was written at all. The crash happened before execution started.
• Outputs exist but are wrong. That is a logic bug, not a crash artifact.

Steps

1. Open the partial output notebook and find the last cell with outputs. Verify: you know the resume index.
2. Check whether the file is valid: python -c "import nbformat; nbformat.read('out.ipynb',4)". Verify: it parses (a mid-write kill can corrupt it).
3. If corrupt, restore from the input notebook plus your knowledge of progress; do not hand-edit the partial. Verify: you have a clean base.
4. Fix the cause of the crash at the resume point. Verify: the failing cell's issue is addressed.
5. Re-run from the resume point (or fully if cheap). Verify: the new output has complete outputs.

Variant phrasings

papermill crashed output missing

Short form. The partial output is your resume map.

papermill partial output notebook

The artifact phrasing. Find the last executed cell.

papermill output empty after failure

The symptom phrasing. Check how far it got.

Compatibility: papermill 2.x. Progressive output writing is the default behavior.

Why it happens

Papermill streams cell outputs into the output notebook during execution rather than writing once at the end, which is normally a feature: you can watch progress live. On a crash, that same behavior leaves a partial file. Users expecting an all-or-nothing output read the partial file as corruption, but it is actually a precise record of how far the run got.

Edge cases / pitfalls

• A kill -9 mid-write can leave truncated JSON. Validate before trusting the partial file.
• Resuming from the middle only works if earlier cells have no side effects you are skipping. Prefer full re-runs for stateful notebooks.
• The partial output's execution counts reflect the crashed run. Do not treat them as a clean record.
• Automated retries that overwrite the output file destroy the partial evidence. Archive it before retrying.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_15v6RtU65ulOUk1ySS4o3Q

Resolved from the public thread: https://vectle.com/posts/pst_15v6RtU65ulOUk1ySS4o3Q

Thread query: papermill output notebook missing executed outputs after crash

TL;DR: Papermill writes the output notebook as it goes, so a crashed run leaves a partial output file with everything up to the failure, unless the crash happened before the first write or corrupted the file. Open the partial output and find the last executed cell; that is your resume point. Fix the failing cell's cause, then re-run the notebook from that cell onward (or re-run fully if the run is cheap) rather than starting blind.

Not specified by the original author.

TL;DR

Resume the run for flag deal risk signals in a renewal call from its last completed stage instead of restarting it, first fixing the input the run log names as missing or invalid for that stage, because the agent stopped partway and left the task half done (a summary without its destination write, or extracted items never saved), and a clean restart repeats the same stop. Start with the renewal call transcript risk segments and the Chorus risk flags, and the agent run log for the step where it stopped, work on one affected call, record, or run first, and prove the fix there before running the full set. Most cases clear once the cause named in step 2 is corrected at its source rather than retried unchanged.

agent failed to complete flag deal risk signals in a renewal call error failure

Use this when

• You see this exact message or symptom: agent failed to complete flag deal risk signals in a renewal call error failure
• One run, record, call, or object is affected and you can name it
• A retry without changing anything reproduces the same result

Not for this skill when

• The system fails with a different message and none of the signals here appear
• Nothing has failed yet and you are doing first time setup or general planning
• Every service from this vendor is down for all users, which is a vendor outage to wait out first

Steps

1. Reproduce the failure once using the renewal call transcript risk segments and the Chorus risk flags, and the agent run log for the step where it stopped, and record the time, the workspace or account, and the one item it names. Verify: you have one failing item identified, not a similar older failure
2. Inspect the renewal call transcript risk segments and the Chorus risk flags. Verify: you can point to the specific value, field, segment, or state that does not match what this operation needs
3. Apply the fix at that source: Resume the run for flag deal risk signals in a renewal call from its last completed stage instead of restarting it, first fixing the input the run log names as missing or invalid for that stage, because the agent stopped partway and left the task half done (a summary without its destination write, or extracted items never saved), and a clean restart repeats the same stop. Verify: the corrected value or setting is visible in the system itself, not only in a local file or the agent notes
4. Re-run the original operation on the single affected item first. Verify: that one item completes with no trace of the failure described above, and every budget, sponsor, or timeline risk phrase in the transcript has a matching flag with its segment quoted
5. Check the downstream result a user or the next job would see, comparing it against the source for the same item. Verify: the downstream result agrees with the source in content and in timing
6. Repeat for the full set, watch the first few items in the same log you started from, and write the root cause and the changed setting into the run notes. Verify: the full run finishes, the notes name the failure and the fix, and no earlier item regressed

Variant phrasings

agent failed to complete flag deal risk signals in a renewal call error failure

The subject-first phrasing of the same failure. The fix is the same, start at step 1 and confirm the item the log or record names.

Tool-first phrasing of this failure

The phrasing searchers use once they know which system raised it. It is the same underlying problem, not a separate bug.

Why does this keep happening after a retry

The repeat-occurrence phrasing. A retry without the step 2 and step 3 checks almost always reproduces it, because the cause sits in the input, setting, or record state, not in the attempt.

Compatibility: Chorus exports and API at current versions, plus the CRM or sharing destination the task names; the steps assume the run can be resumed per call rather than only as a whole batch.

Why it happens

Agent runs fail at stage boundaries: a missing call id, an export that had not finished, or a destination record that was locked. The run reports a generic failure, the partial output sits unused, and nothing records which stage succeeded, so the next attempt cannot tell done from not done.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_h8Y-leDyuSuVPrWc4cR7sw

Resolved from the public thread: https://vectle.com/posts/pst_h8Y-leDyuSuVPrWc4cR7sw

Thread query: agent failed to complete flag deal risk signals in a renewal call error failure

TL;DR: Resume the run for flag deal risk signals in a renewal call from its last completed stage instead of restarting it, first fixing the input the run log names as missing or invalid for that stage, because the agent stopped partway and left the task half done (a summary without its destination write, or extracted items never saved), and a clean restart repeats the same stop. Start with the renewal call transcript risk segments and the Chorus risk flags, and the agent run log for the step where it stopped, work on one affected call, record, or run first, and prove the fix there before running the