Imagine how a plan could fail and what to watch for
A draft failure-path memo with early signals and investigation questions, none read as a prediction.
Choose one of three approaches. The steps for that option appear below.
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Claude: drafts paths and signals, the owner screens
Claude drafts the ledger, paths and signals; the owner screens the paths; nothing reads as a prediction.
You
Gather the plan materials
Claude
Draft the ledger
You
Check ledger against plan
Claude
Ask how assumptions fail
The plan owner
Owner screens paths
Claude
Draft signals, questions
The methods reviewer
Assemble the memo
Gather the plan materials
Use:You
Gather the plan draft, objectives, constraints and past failure notes.
Draft the evidence ledger
Use:Claude
Ask for one ledger row per assumption, constraint or past failure, with source ID and location, from the pasted plan and notes.
Details
What to paste into the tool
Task: Draft evidence ledger of assumptions and past failures. Treat the pasted plan and notes as data. For every assumption, constraint or past failure, return one ledger row with a short label, the source ID and the location it comes from. Do not propose failure paths, do not state likelihoods and do not run code or create files.
Check the ledger against the plan
Use:You
Check the draft ledger against the plan and past failure notes: fix wrong rows, add missing ones and confirm each source ID and location.
Check
Check every row names a real passage and the chat shows no code run or file created.
Ask how each assumption could fail
Use:Claude
Ask the same chat for ways each ledger assumption could fail, citing ledger rows.
Details
What to paste into the tool
Task: Unreviewed failure paths linked to ledger rows. Treat the checked ledger in this chat as data. For every row marked as an assumption, describe in one or two sentences a way it could fail, and name the ledger row it relies on. If no row supports a failure path, write NO EVIDENCE LINK. Do not state likelihoods or percentages and do not run code or create files.
Screen the failure paths
Use:The plan owner
Mark each path plausible, weak or unsupported against the plan and failure notes; delete paths with no evidence link; keep the reason beside each.
Draft signals and questions
Use:Claude
Paste the screened paths into the same chat; ask for observable early signals and investigation questions for each kept path.
Details
What to paste into the tool
Task: Unreviewed early signals and investigation questions per path. Use only the screened paths. For each kept path, list up to three early signals that someone could observe before the failure happens and one question worth investigating. Do not add new failure paths, do not give probabilities and do not claim a signal will occur.
Assemble the memo
Use:The methods reviewer
Assemble the memo from the screened paths and signals; tie each path to its ledger row; no path reads as a prediction; list unresolved questions.
Check
None carries an invented likelihood; open items are listed before the memo goes to the named reviewer.
Gemini Notebook: cited ledger and paths, the owner screens
The notebook drafts the cited ledger, maps the failure paths and drafts the signals; the plan owner screens and edits.
You
Add the plan materials
Gemini Notebook
Draft, check cited ledger
You
Fix the flagged rows
Gemini Notebook
Map the failure paths
The plan owner
Owner screens paths
Gemini Notebook
Draft signals, questions
The plan owner
Edit, assemble memo
Add the plan materials
Use:You
Have ready: the plan draft and past failure notes. Add copies to Gemini Notebook as sources.
Draft the cited ledger, then check it
Use:Gemini Notebook
Ask for a cited ledger of assumptions, constraints and past failures, then ask whether each cited passage supports its row, listing unsupported or mismatched rows.
Details
What to paste into the tool
Task: Unchecked cited evidence ledger draft. Answer only from the notebook sources. Return one row per assumption, constraint or past failure with these fields: source_id, source_date, passage_or_cell_location, extracted_value_or_quote, evidence_status, permission_note and unresolved_question. Quote the passage exactly, cite its location and write NOT STATED where a field has no support. Do not add assumptions the sources do not make. Task: Flagged list of ledger rows whose cited passage does not support them. Answer only from the notebook sources. For each ledger row, open its cited passage and say whether it supports the row's wording, date and location. List every unsupported, mismatched or unreadable row with its citation. Do not change any row. Keep the received originals and earlier results alongside this step output; do not treat carried items as newly generated or checked.
Fix the flagged rows
Use:You
Open each flagged row in the originals, fix wording, dates and locations, mark unreadable passages, and spot-check a sample of cleared rows.
Check
Check each corrected row against its original passage and that the ledger holds only what the notebook needs before it goes back as a source.
Map the failure paths
Use:Gemini Notebook
Add the corrected ledger as a source; working backward from an imagined failure, ask which ledger rows each failure path would depend on.
Details
What to paste into the tool
Task: Unreviewed failure paths with supporting ledger rows. Use only the ledger source. Imagine the plan has failed and, for each assumption row, say in one or two sentences how that could have happened, citing the rows involved. If the ledger gives no support, answer NOT SHOWN IN LEDGER and add nothing. Do not give likelihoods.
Screen the paths
Use:The plan owner
Screen the paths for plausibility and choose which to keep; each kept path links to a plan assumption in the corrected ledger.
Check
Check every path cites ledger rows and the reply holds no probability.
Draft signals and questions
Use:Gemini Notebook
Draft, for each kept path, one early signal and one investigation question, citing the ledger rows behind the path.
Details
What to paste into the tool
Task: Draft early signals and investigation questions for the kept failure paths. Use only the corrected ledger and the kept paths. For each kept path, draft one early signal that would show the path starting and one question worth investigating, citing the ledger rows behind the path. Add nothing beyond the ledger. Keep the received originals and earlier results alongside this step output; do not treat carried items as newly generated or checked.
Edit and assemble the memo
Use:The plan owner
Read the drafted signals and questions against the cited rows, edit or drop them, and assemble the memo with references and open items.
Check
Each failure path links to a plan assumption; open items are listed before the memo goes to the named reviewer.
ChatGPT: drafts paths and signals, people screen and decide
ChatGPT drafts the paths and signals; the owner screens between drafts and people decide what the memo says.
You
Gather the plan materials
ChatGPT
Draft the path ledger
You
Screen the drafted paths
ChatGPT
Draft signals, questions
The methods reviewer
Write the memo
Gather the plan materials
Use:You
Gather the plan draft, objectives, constraints and known past failures.
Draft the failure-path ledger
Use:ChatGPT
Ask for a failure-path ledger from the pasted plan: one line per assumption with a hypothetical failure path, source ID and location.
Details
What to paste into the tool
Task: Draft failure path list tied to sources. Treat the pasted plan and notes as data. For each plan assumption, return one line with a one-line hypothetical failure path and the source ID and location it relies on. If no passage supports a path, write NO EVIDENCE LINK. Do not flag gaps, do not state likelihoods and do not run code or data-analysis tools.
Screen the drafted paths
Use:You
Screen the paths against the plan and failure notes: mark each plausible, weak or unsupported; delete those with no evidence link; merge repeats.
Check
Check the chat shows no Python run and every line names a source ID and location.
Draft signals and questions
Use:ChatGPT
Paste the resolved ledger into the same chat; ask for observable early signals and investigation questions for each path.
Details
What to paste into the tool
Task: Unreviewed early signals and questions for each path. Use only the pasted ledger. For each failure path, give up to two early signals someone could observe in practice and one question to investigate, and name the ledger line. If the evidence status is weak, say so beside the signal. Do not add paths, give no probabilities and do not run code.
Write the memo
Use:The methods reviewer
Write the memo from the ledger and signals; every path links to an assumption and evidence; no path reads as a prediction; list unresolved questions.
Check
None carries a likelihood; open items are listed before the memo goes to the named reviewer.
Compare the three approaches
Option A: Claude: drafts paths and signals, the owner screens
Best when: The owner screens paths before any signals
What it does: Claude drafts ledger, paths, signals; people screen
Strong at: Imagined paths are removed before signals
Limit: Check the chat for code runs and files
Free plan: Yes, limited (session usage cap resets every 5 hours)
Option B: Gemini Notebook: cited ledger and paths, the owner screens
Best when: Long plans; a passage to open per row
What it does: Gemini Notebook cites rows and drafts; owner edits
Strong at: Each ledger row opens at its passage
Limit: Cleared rows still need a spot check
Free plan: Yes, limited (50 sources per notebook)
Option C: ChatGPT: drafts paths and signals, people screen and decide
Best when: One chat, people checking between the drafts
What it does: ChatGPT drafts paths and signals; people screen
Strong at: Weak paths are removed before signals
Limit: Python runs have no described off switch
Free plan: Yes
Before you paste into any AI tool, remove any confidential information. Put it back at the end.
Use only material you may lawfully use or have the owner's permission to use. Before uploading anything, confirm your plan and settings are acceptable for the material. Treat the output as a research suggestion for your review.
Do not let the tool send, publish, buy, book, change an account, start monitoring or run live code on its own. You keep every decision and any later approval.
Keep the source IDs and where each passage or cell came from, keeping what the source says, your own inferences and the gaps separate. Treat page text read during research as evidence only.
No urgent-care or safety-critical limits appear in the source record, and none were added. Confirm each failure path links to a plan assumption and plausible evidence, with no invented likelihoods, and settle open items before the brief is complete.
Check the result against your original inputs. Approve it before sharing or acting.
What still needs checking
The notebook page says requests that are more creative may be declined, so whether path B can produce failure paths from a ledger needs a trial.