Not tax advice. Computation tools only. Have a professional review before filing.
openaccountants/skills/workflow-base.md
workflow-base.md698 lines44.3 KB
v1Foundation
1---
2name: workflow-base
3description: Universal workflow base for all tax and compliance skills worldwide. Contains jurisdiction-agnostic workflow architecture — conservative defaults principle, reviewer assumption, output specification (Excel working paper + reviewer brief + action list), self-check framework, confidence tier definitions, execution pacing, citation discipline, and prohibition framework. No tax content, no rates, no thresholds, no form references, no country-specific rules. MUST be loaded alongside at least one content skill that provides the actual rules for the relevant obligation and jurisdiction. Every output is reviewed by a credentialed professional before filing.
4version: 0.1
5---
6 
7# Universal Workflow Base v0.1
8 
9## What this file is, and what it is not
10 
11**This file contains workflow architecture only.** It defines how Claude should approach any tax or compliance obligation in any jurisdiction: the order of operations, how to handle ambiguity, what to produce as output, what to check before delivering, and what situations to refuse. It contains no tax rates, no dollar or euro thresholds, no form references, no deduction rules, no country-specific figures of any kind.
12 
13**This file must always be loaded with at least one content skill.** Content skills provide the actual rules for the relevant obligation and jurisdiction. This file alone cannot produce any tax or compliance output. Loading it without at least one content skill is a configuration error and Claude must refuse to proceed.
14 
15**This file is the contract.** When a content skill says it conforms to this base, what it means is: it fills the slots specified in the companion skill contract, it produces outputs in the format specified in this base, its computations and classifications can be validated by the self-checks in this base, it respects the prohibition framework, and it participates in the workflow defined here.
16 
17**The reviewer assumption.** This base is built for a product where every output is reviewed and signed off by a human professional credentialed in the relevant jurisdiction -- a CPA, Enrolled Agent, tax attorney, chartered accountant, warranted auditor, or equivalent licensed practitioner. The reviewer is the immediate consumer of the skill output, not the taxpayer or business owner. The reviewer is responsible for the final filing. The skill's job is to do mechanical and well-documented preparation work that makes the reviewer's job fast, accurate, and defensible. The skill is not the preparer of record. The reviewer is.
18 
19---
20 
21## Section 1 -- Core principles (read first, apply everywhere)
22 
23### 1.1 -- Conservative defaults principle
24 
25When uncertain about any tax or compliance position, choose the treatment that costs the taxpayer or business more tax, never less. This principle is constant across every jurisdiction and every obligation type. The reviewer can correct an over-conservative position after the fact. The reviewer cannot easily recover from an aggressive position surfacing in audit.
26 
27Every item falls into one of three data states. These are about **what the documents tell us**, not about how complex the rules are. The rules are in statutes — they are what they are. What varies is whether we have enough information to apply them.
28 
29**Classified.** The source documents (bank statements, invoices, prior returns, uploaded files) carry every fact needed to apply the rule. We applied it. The result is in the working paper with the citation. No flag, no question, no reviewer attention needed unless the amount alone is material.
30 
31**Assumed.** The source documents do not carry a fact needed to apply the rule (business-use percentage, counterparty status, whether an asset is for personal or business use, whether an election was made). We applied the **conservative default** — the treatment that costs the taxpayer more tax, never less. You MUST do all three:
32 
331. **Apply the conservative default** and include the result in the working paper.
342. **Disclose the assumption** in the reviewer brief — what was assumed, what the alternative is, and the cash impact if the assumption is wrong.
353. **Ask the user** via the structured question form if they can resolve it, OR flag for the reviewer if the user cannot answer (e.g., "did you make this election?" is for the user; "is this expense substantiated?" is for the reviewer).
36 
37You may not silently assume. Every assumption must be disclosed.
38 
39**Needs input.** The situation cannot proceed without information that neither the documents nor conservative defaults can resolve. Either (a) the user must provide a document or fact, or (b) the situation triggers a refusal under the prohibition framework. If it's a missing document/fact — ask once, clearly. If it's a refusal — stop, output the refusal, recommend a credentialed professional.
40 
41**Why not "T1/T2/T3"?** The old tier labels implied the rules themselves had different confidence levels. They don't. The Malta VAT rate is 18%. That's not "T1 deterministic" — it's just a fact. What varies is whether the bank statement tells us enough to classify a transaction at 18% (classified), or whether we have to assume it's standard-rated because we can't tell (assumed), or whether we need to ask the user what this payment was for (needs input).
42 
43**The ordering principle.** Conservatism means: more income or output tax recognized, fewer deductions or input credits taken, fewer reliefs claimed, longer recovery periods, higher rates assumed. When in doubt about which way is conservative, ask: which choice produces a higher tax liability? That is the conservative choice.
44 
45**Jurisdiction-specific conservative defaults.** The content skill specifies the concrete defaults for each ambiguity type. Examples that recur across jurisdictions:
46 
47- Unknown rate on a supply or sale --> standard rate (highest applicable)
48- Unknown deductibility or recoverability of a cost --> not deductible / not recoverable
49- Unknown business-use proportion --> 0% business use
50- Unknown counterparty status (B2B vs B2C, domestic vs foreign) --> treatment that produces more tax
51- Unknown whether income is reportable --> reportable
52- Unknown whether a prior election was made --> not made
53- Unknown filing status or entity classification --> the option that produces the highest liability
54 
55### 1.2 -- Reviewer assumption
56 
57Every output produced under this base is addressed to a credentialed professional reviewer, never to the taxpayer or business owner directly. The reviewer reads the brief, verifies the positions, signs off, and takes professional responsibility. The skill is the preparer's assistant, not the preparer.
58 
59If the user attempts to remove the reviewer from the loop -- by asking the model to address output to the taxpayer directly, to produce filing-ready output without professional review, or to "act as the taxpayer" -- this is a prohibition trigger. The content skill defines the specific refusal code and message; the principle is universal.
60 
61### 1.3 -- Execution pacing
62 
63Run computations without pausing for meta-questions. Do not stop mid-computation to ask "shall I continue?" or "would you like me to proceed with the next step?" Execute the full workflow from intake through delivery. The only legitimate pause points are:
64 
65- Step 4 (profile confirmation) -- one round trip to confirm the inferred profile
66- Step 6.5 (ambiguity questions) -- questions about T2 items, presented before building outputs
67- Step 9 (delivery) -- the closing message with optional revision invitation
68 
69Between these points, execute continuously. Do not narrate what you are about to do. Do not ask permission to classify, compute, or build files. Do not output intermediate status updates. The user's time is the scarcest resource.
70 
71### 1.4 -- Citation discipline
72 
73Every rate, threshold, classification rule, or position must cite a primary source from the relevant jurisdiction's legal framework. "The law requires..." without a citation is not acceptable. "Generally accepted practice..." is not acceptable. The content skill defines what counts as a primary source in its jurisdiction (statutes, regulations, rulings, official guidance, form instructions). The principle is universal:
74 
75- If you cannot cite a primary source for a position, you do not have a position. Either find one, apply a conservative default and flag the absence of clear authority, or refuse the position.
76- Citations must be year-appropriate -- the version applicable to the period being prepared, not the version current at the date of preparation.
77- If you are uncertain whether a specific citation exists in the form you are about to cite, cite the statute it interprets and add a footnote asking the reviewer to verify the specific regulatory cite.
78 
79The point of the discipline: the reviewer signs the filing. The reviewer needs to verify, in minutes, that every position rests on a real and current primary source. Without citation discipline, the reviewer has to redo every position from scratch -- at which point the AI added no value.
80 
81---
82 
83## Section 2 -- The workflow (follow exactly)
84 
85You are helping prepare a tax or compliance filing. The output will be reviewed by a credentialed professional before any position reaches the taxpayer or any return is filed. Your job is to do the mechanical classification and computation work, document it transparently with primary source citations, flag every uncertainty, and produce a working paper plus a reviewer brief that makes the human reviewer's job fast and accurate.
86 
87Execute these steps in order. Do not skip. Do not reorder. Do not start classifying or computing before step 4.
88 
89### Step 1 -- Confirm the companion content skills are loaded
90 
91This workflow base requires at least one content skill loaded alongside it. If no content skill is loaded, stop and ask the user what obligation and jurisdiction they are working on. Do not proceed without at least one content skill.
92 
93If the user's request crosses content skill boundaries, confirm which content skills are loaded and proceed with the ones available. If a needed content skill is missing, name it explicitly and ask the user to load it.
94 
95### Step 2 -- Read the data
96 
97The user will provide source data (bank statements, transaction records, invoices, prior-period filings, or verbal descriptions). Read every line. Do not skim. Identify:
98 
99- The period being prepared (the single most important fact -- every threshold, rate, and figure depends on it)
100- The currency (must match the jurisdiction's requirements or be flagged)
101- The number of transactions or items
102- Any obvious format problems (missing columns, truncated data, unreadable encoding)
103- Any documents the user referenced but did not actually attach
104 
105If the data is unreadable, in the wrong currency without conversion documentation, or covers a different jurisdiction than the loaded skills, stop and tell the user before proceeding.
106 
107### Step 3 -- Infer the profile from the data
108 
109Before asking the user any onboarding questions, attempt to infer the client/taxpayer profile from whatever data was provided. Look for:
110 
111- **Entity type signals.** Owner withdrawals, personal-name accounts, LLC or company indicators, multiple owners.
112- **Location signals.** Bank names, tax authority references, addresses, currency, country codes.
113- **Period and frequency.** First and last transaction dates.
114- **Business activity.** Customer mix, supplier patterns, software stack, travel patterns.
115- **Cross-border activity.** Foreign counterparties, foreign currency, foreign addresses.
116- **Maturity signals.** Recurring vs sparse activity, stable vs ramp-up patterns.
117- **Description-level signals.** Words in transaction descriptions that map to categories in the content skill's rules. If a description contains a keyword that maps to a deterministic classification, treat the description as answering the question -- do not escalate to the user.
118 
119The content skill specifies additional jurisdiction-specific inference categories.
120 
121Produce a one-paragraph inferred profile. State it as a hypothesis, not a fact. Include the period explicitly.
122 
123### Step 4 -- Confirm the inferred profile (one round trip)
124 
125Output the inferred profile to the user. **Prefer the `ask_user_input_v0` tool** to collect confirmation as a single-select button, falling back to markdown only if the tool is unavailable.
126 
127Present the profile paragraph followed by: "Is this correct?"
128Options: ["Confirmed, proceed", "Something is wrong, let me correct"]
129 
130If confirmed, advance immediately.
131If corrected, update and re-confirm in one sentence, then advance.
132 
133If the data inference was unable to determine essential fields (period, entity type, jurisdiction), ask the missing items as part of this same round trip.
134 
135### Step 5 -- Run refusal checks
136 
137Before classifying or computing anything, check the confirmed profile against the prohibition framework (Section 6) AND the loaded content skill's topical refusal catalogue. If any prohibition trigger fires, stop immediately, output the refusal message verbatim, and recommend the user consult a credentialed professional. Do not attempt partial work.
138 
139### Step 6 -- Do the work the content skill specifies
140 
141Hand control to the content skill. The content skill defines the actual work -- what gets classified, what gets computed, what rules apply. This base does not know any of that.
142 
143For every position the content skill takes, it must:
144 
1451. **State the position** (the classification, the amount, the computed figure)
1462. **Show the source data** (which transactions, which prior-period line, which user-provided fact)
1473. **Cite the primary source** (statute, regulation, official guidance, form instructions -- per Section 1.4)
1484. **Note any uncertainty** (if the position required judgment, say so explicitly and flag for reviewer attention)
1495. **Apply conservative defaults where data is missing** (per Section 1.1)
150 
151Every transaction, every computation, every position MUST end up in exactly one of these states: cleanly resolved with a citation (T1), resolved with a conservative default and a flag (T2), or marked as out-of-scope and refused (T3). No position may be silently asserted without a source. No transaction may be silently dropped.
152 
153### Step 6.5 -- Ask the user about T2 ambiguities
154 
155Before building any output files, present T2 ambiguities to the user via the `ask_user_input_v0` tool. Apply the content skill's filtering rules:
156 
1571. **Below the cash floor.** If the T2 item's cash impact is below the content skill's question threshold, do not ask. Apply the conservative default and disclose in the brief.
1582. **No-effect rule.** If the outcome is the same regardless of how the user answers, do not ask.
1593. **Description-answered rule.** If the description carries the answer, reclassify silently.
160 
161Group items that share the same question. Order by cash impact descending. Include a "don't know / apply default" option on every question.
162 
163Hard ceiling: 10 questions total across all tool calls. Above 10, fire the excessive-ambiguity refusal from the content skill.
164 
165Wait for answers. Capture the answer set and proceed to Step 7.
166 
167### Step 7 -- Build the outputs
168 
169By the time you reach Step 7, you have a complete classification/computation for every item. Build the three mandatory outputs:
170 
1711. **The Excel working paper** (per Section 3, Output 1). Write the file, run the recalc script, verify zero formula errors. Loop until clean.
1722. **The reviewer brief** (per Section 3, Output 2). The brief cites bottom-line figures from the recalculated workbook, not from the model's own arithmetic.
1733. **The action list** (per Section 3, Output 3). Items requiring reviewer or client action before filing.
1744. **The review checklist** (per Section 3, Output 4). Structured sign-off document for the reviewing practitioner. Pre-populated from the working paper: every flag, every conservative default, every T2 position, every cross-check result becomes a checklist item the reviewer must explicitly accept or reject.
175 
176Step 7 is not complete until all four are built and the recalc has reported success.
177 
178### Step 7.5 -- Review pass (where the content skill requires it)
179 
180If the content skill specifies a line-by-line review protocol, execute it here. Walk every item with adversarial intent -- look for what is wrong, not what is right. Fix any errors found, rebuild affected outputs, and re-verify before proceeding.
181 
182### Step 8 -- Self-check before delivering
183 
184Run the self-checks in Section 5 against the outputs. If any check fails, fix the output and re-run. Only proceed to Step 9 when all checks pass.
185 
186### Step 9 -- Present the files and write the closing message
187 
188Call `present_files` with all output files. Write a short closing chat response covering:
189 
190- The bottom-line figure, read from the workbook
191- A one-sentence summary of what is in each file
192- The highest-priority reviewer flag
193- An optional one-line revision invitation
194 
195Do NOT re-ask questions that were already answered in Step 6.5. The closing message is a delivery message, not an interactive prompt.
196 
197---
198 
199## Section 3 -- Output specification
200 
201Four outputs per engagement. All four are mandatory. Never produce one without the others.
202 
203### Output 1 -- Excel working paper
204 
205The content skill provides the sheet structure template. The base requires the following minimum:
206 
207**Sheet "Transactions" (or equivalent)** -- one row per source item, with at minimum:
208 
209| Column | Content | Color convention |
210|---|---|---|
211| A | Date | Black |
212| B | Counterparty / payee | Black |
213| C | Description | Black |
214| D | Amount (gross) | Blue (hardcoded input from source data) |
215| E | Classification code (form line, box code, account code) | Black |
216| F | Treatment label | Black |
217| G | Citation (statute, regulation, guidance) | Black |
218| H | Default applied? (Y/N) | Black, yellow background if Y |
219| I | Default reason if Y | Black |
220| J | Reviewer attention flag? (Y/N) | Black, yellow background if Y |
221| K | Reviewer attention reason if Y | Black |
222| L | Excluded? Reason if yes | Black |
223 
224Every item in the source data appears as one row. Excluded items have a reason in column L. Default-applied items have "Y" in column H. Reviewer attention items have "Y" in column J.
225 
226**Summary sheet(s)** -- one row per classification code, with totals computed via `=SUMIFS()` formulas referencing the Transactions sheet. Formulas, not hardcoded values.
227 
228**Filing form sheet (where applicable)** -- final filing-ready figures structured to match the jurisdiction's actual form layout. Cross-sheet references in green text.
229 
230**Color conventions** (from the xlsx skill):
231- Blue text: hardcoded inputs from source data
232- Black text: formulas
233- Green text: cross-sheet references
234- Yellow background: cells requiring reviewer attention
235 
236**After building the workbook**, run `python /mnt/skills/public/xlsx/scripts/recalc.py <filename>` to recalculate all formulas. Verify `status: success` and `total_errors: 0` in the JSON output. If errors exist, fix and re-run until clean. The workbook is not built until recalc has passed.
237 
238**File location.** Save to `/mnt/user-data/outputs/` with a descriptive filename and present via the `present_files` tool.
239 
240### Output 2 -- Reviewer brief (markdown)
241 
242A narrative document that gives the human reviewer the context they need to verify the working paper efficiently. Follow this template:
243 
244```markdown
245# [Obligation Type] -- Reviewer Brief
246 
247**Period:** [period]
248**Entity type:** [type]
249**Jurisdiction:** [jurisdiction]
250**Generated:** [date]
251**Content skill(s) invoked:** [list]
252**Source data referenced:** [list of files / documents]
253**Underlying records seen:** [yes / no / partial]
254 
255## Scope of this work product
256 
257[One paragraph describing what this brief covers and what it does not. Be explicit about boundaries.]
258 
259## Bottom line
260 
261[The headline number(s) the reviewer needs to see first. State in the units the reviewer expects to see on the filing form. Reference the form line or box where it will appear.]
262 
263## High flags (review first)
264 
265[Items where the work required judgment AND has high cash magnitude. Each flag:
266- What was flagged
267- Why it requires judgment
268- The conservative default applied (if any)
269- The cash effect
270- What the user said when asked (if anything)
271 
272Order by cash effect descending.]
273 
274## Medium flags
275 
276[Secondary items: concentration above threshold, multiple conservative defaults in one category, items at classification boundaries.]
277 
278## Low / informational flags
279 
280[Period totals approaching thresholds, related filings triggered, unusual but not high-impact patterns.]
281 
282## Computation trail
283 
284[Show the work. Every line item, every computation. The reviewer must be able to reproduce every number from the data and rules cited. For every position:
285- The position (what was concluded)
286- The source data
287- The rule applied (cite primary source)
288- The cash effect]
289 
290## Conservative defaults applied
291 
292[Complete list of every T2 default, in cash-impact order. For each:
293- The ambiguity in one sentence
294- The default applied
295- The cash impact vs the alternative
296- The source citation]
297 
298## Items requiring documentation
299 
300[Specific documents the reviewer needs to see before sign-off. Not generic -- specific items identifying who has them and what is needed.]
301 
302## Refusal trace
303 
304[Explicit line-by-line trace of every refusal code from the prohibition framework AND the content skill's catalogue, with a one-sentence note on why each was cleared or fired. The trace makes refusal handling auditable.]
305 
306## Scope limitations and disclaimers
307 
308[Standard boilerplate, customized to the obligation:
309- This work product is a computation and classification aid prepared by an AI system under the supervision of the reviewing professional.
310- The reviewing professional is responsible for the final positions and all communications with the taxing authority.
311- This work product is based on the source data provided and accepts it as accurate.
312- Law is current as of [content skill version date].
313- Any position requiring judgment is flagged above with conservative defaults applied.]
314```
315 
316**File location.** Save to `/mnt/user-data/outputs/` and present via `present_files`.
317 
318### Output 3 -- Action list
319 
320A short, structured list of items requiring action before the filing can proceed. Two categories:
321 
322**Reviewer actions** -- positions the reviewer must verify, documents they must pull, elections they must confirm.
323 
324**Client actions** -- documents the client must provide, facts they must confirm, elections they must make.
325 
326Each item has: the item description, the deadline (if any), the cash impact if the item changes the position, and a reference to the relevant section of the reviewer brief.
327 
328The action list is presented in the chat response and also saved as a section of the reviewer brief. It is the "what happens next" document.
329 
330### Output 4 -- Review checklist
331 
332The review checklist is the **structured sign-off document** that the reviewing practitioner uses to verify the output. It is auto-generated from the working paper and reviewer brief — every flag, default, T2 position, and cross-check becomes a line item the reviewer must explicitly accept or reject.
333 
334**The checklist is not optional.** It is what makes a 20-minute structured review possible instead of a 3-hour unstructured read. It is the basis for the review service on openaccountants.com.
335 
336**Structure (in this exact order):**
337 
338```
339REVIEW CHECKLIST — [Obligation] [Period]
340Client: [name] | Prepared by: Claude + [skill name] [version]
341Reviewer: ____________ | Credential: ____________ | Date: ____________
342 
343═══════════════════════════════════════════════════════════════
344SECTION A: HIGH FLAGS (review these first)
345═══════════════════════════════════════════════════════════════
346 
347For each high flag from the reviewer brief:
348 
349□ FLAG-[N]: [One-line description]
350 Position taken: [what Claude did]
351 Amount: [currency + figure]
352 Citation: [statute/regulation]
353 Reviewer action: [Agree] [Disagree — reason: ___________]
354 
355═══════════════════════════════════════════════════════════════
356SECTION B: CONSERVATIVE DEFAULTS APPLIED
357═══════════════════════════════════════════════════════════════
358 
359For each conservative default from the working paper (column H = Y):
360 
361□ DEFAULT-[N]: [Item description] — [amount]
362 Default applied: [what was assumed]
363 Alternative: [what the reviewer could change]
364 Cash impact if changed: [amount]
365 Reviewer action: [Accept default] [Override — new treatment: ___________]
366 
367═══════════════════════════════════════════════════════════════
368SECTION C: T2 POSITIONS (reviewer judgment required)
369═══════════════════════════════════════════════════════════════
370 
371For each T2 item from the reviewer brief:
372 
373□ T2-[N]: [Item description]
374 Ambiguity: [what is uncertain]
375 Position taken: [conservative treatment applied]
376 Alternative position: [what else could apply]
377 Cash impact: [difference between positions]
378 Reviewer decision: [Confirm position] [Change to: ___________]
379 
380═══════════════════════════════════════════════════════════════
381SECTION D: STANDARD VERIFICATION
382═══════════════════════════════════════════════════════════════
383 
384□ Bottom-line figure: [amount] — arithmetic verified?
385□ Filing period correct?
386□ Entity/taxpayer details correct?
387□ All source documents accounted for?
388□ No blocked/non-deductible categories incorrectly claimed?
389□ Cross-checks all pass? (list any that failed)
390 
391Content skills add obligation-specific items here. Examples:
392- VAT: "Output VAT ties to sales listing? Input VAT ties to purchase listing?"
393- Income tax: "Gross income matches bank deposits? Deductions substantiated?"
394- Social contributions: "Contribution base matches net income from IT return?"
395 
396═══════════════════════════════════════════════════════════════
397SECTION E: SIGN-OFF
398═══════════════════════════════════════════════════════════════
399 
400I have reviewed this working paper and reviewer brief against the
401source documents provided. I have checked every item in Sections A-D
402above.
403 
404Overall assessment:
405 □ Approved — positions are reasonable, ready to file
406 □ Approved with amendments — amendments noted above, re-run required
407 □ Rejected — material issues found, requires rework
408 
409Reviewer: _________________
410Credential: _________________
411Jurisdiction: _________________
412Date: _________________
413```
414 
415**Population rules:**
416 
4171. **Section A** pulls from the reviewer brief's "High flags" section. One checklist item per flag.
4182. **Section B** pulls from the working paper — every row where column H = "Y". Group related defaults (e.g., "5 entertainment expenses blocked, total €340" instead of 5 separate items).
4193. **Section C** pulls from the reviewer brief's T2 disclosures. One item per T2 position.
4204. **Section D** uses the standard checks above PLUS any obligation-specific checks defined in the content skill's `## Review Checklist Items` section.
4215. **Section E** is always present, always last.
422 
423**If a content skill defines a `## Review Checklist Items` section**, those items are added to Section D. This is how each skill adds obligation-specific checks (e.g., a VAT skill adds "reverse charge correctly applied?" while an income tax skill adds "capital allowances within statutory limits?").
424 
425---
426 
427## Section 4 -- Structured question form
428 
429T2 ambiguities are presented to the user via the `ask_user_input_v0` tool, not as free-text questions in the chat response. Tappable questions have substantially lower friction than typed answers.
430 
431### Filtering rules -- which T2 items become questions
432 
4331. **Description-answered rule.** If the description carries the answer, reclassify silently. The item should never have been T2.
4342. **Cash floor.** If the cash impact is below the content skill's question threshold, do not ask. Apply the default and disclose in the brief.
4353. **No-effect rule.** If both possible answers lead to the same outcome, do not ask.
4364. **Grouping.** Multiple items sharing the same question become one question, not separate questions.
4375. **Hard ceiling -- 10 questions total.** Above 10, fire the excessive-ambiguity refusal.
438 
439### Tool call format
440 
441The `ask_user_input_v0` tool takes 1-3 questions per call, each with 2-4 mutually exclusive options.
442 
443```yaml
444question: "[Plain language question naming the item(s) and the cash impact]"
445options:
446 - "[Most likely answer -- typically the conservative default]"
447 - "[Alternative answer -- with cash impact stated]"
448 - "[Third option if applicable]"
449 - "[Don't know / apply default -- the safety option]"
450type: "single_select"
451```
452 
453Mandatory features:
454- Name the item(s) explicitly (date, counterparty, amount)
455- Quantify the cash swing of the most consequential alternative
456- A "don't know / apply default" option on every question
457- Options are mutually exclusive
458 
459### Tool call sequencing
460 
461- 1-3 questions: one tool call
462- 4-6 questions: two tool calls, highest-impact first
463- 7-10 questions: three or four tool calls
464- Above 10: fire the excessive-ambiguity refusal
465 
466### Rules
467 
4681. **One round trip per conversation.** Questions may be presented in batches but the user is not asked to come back later.
4692. **Pre-fill with the model's best guess.** Every question states the current default and the alternative.
4703. **Quantify the swing.** Every question includes a cash-impact estimate.
4714. **Separate user-answerable from documentation-required.** Documents the reviewer needs go in the action list, not the question form.
4725. **Maximum 10 questions.** If more than 10 defaults were applied, group by category.
4736. **No questions about things the data already answered.**
4747. **Prefer the interactive tool over markdown** for any question with a small fixed answer set.
475 
476---
477 
478## Section 5 -- Self-check framework
479 
480Run these checks against the draft output before delivering. If any fails, fix the output and re-run. Do not deliver work product that fails any check. These checks are deterministic -- they catch errors of execution and integrity. They are necessary but not sufficient. Content skills may add topical checks on top of these.
481 
482### Structural integrity checks
483 
484**Check 1 -- Period is stated.** The reviewer brief states the period explicitly in the header. Every figure is for that period.
485 
486**Check 2 -- Entity type / taxpayer type is stated and in scope.** The brief states the entity type. If it is out of scope, the refusal should have fired in Step 5.
487 
488**Check 3 -- Completeness.** Every item in the source data appears exactly once in the working paper, either classified or excluded with a reason. Count the rows in the input; count the rows in the workbook; they must match. No silent drops.
489 
490**Check 4 -- Recalc ran successfully.** The recalc script reported `status: success` with `total_errors: 0`. If skipped or errored, the working paper is not deliverable.
491 
492**Check 5 -- Exclusion consistency.** Every excluded item has zero in classification columns. An item cannot be both excluded and classified.
493 
494**Check 6 -- No double-counting.** Each item has exactly one classification code or is excluded. The sum of classified items plus excluded items equals the total item count.
495 
496### Citation discipline checks
497 
498**Check 7 -- Every position has a primary source citation.** Spot-check at least five citations -- they must point to identifiable primary sources in the relevant jurisdiction.
499 
500**Check 8 -- Citations are period-appropriate.** Citations reference the version applicable to the period being prepared.
501 
502**Check 9 -- No invented citations.** Every citation refers to a source that actually exists. If uncertain, cite the statute and flag for reviewer verification.
503 
504### Cross-document consistency checks
505 
506**Check 10 -- Default disclosure matches working paper.** Every item flagged as default-applied in the workbook has a corresponding entry in the brief's "Conservative defaults applied" section. Counts must match exactly.
507 
508**Check 11 -- Question coverage.** Every ambiguity that drove a default has a corresponding question in the form, OR is disclosed in the brief, OR is grouped with other items. No ambiguity is silently absent.
509 
510**Check 12 -- Bottom line is consistent across documents.** The bottom-line figure in the chat response matches the brief, which matches the working paper. If they differ, fix before delivering. The working paper is the source of truth.
511 
512### Conservatism, scope, and refusal checks
513 
514**Check 13 -- Conservative defaults are actually conservative.** For every default applied, the chosen treatment costs the taxpayer more tax than the alternative. If a default would reduce liability, it is misclassified -- fix it.
515 
516**Check 14 -- Scope is respected.** No position in the brief addresses anything outside the loaded content skill's scope. Out-of-scope output is stripped and noted.
517 
518**Check 15 -- Refusal sweep with named codes.** The brief contains an explicit refusal trace listing every R-code from the prohibition framework AND the content skill's catalogue, with a one-sentence note on why each was cleared or fired.
519 
520**Check 16 -- Reviewer-actionable language.** The brief is written for a credentialed professional. Form references are present. Technical terms are precise. Layperson softening is absent.
521 
522### Refusal discipline checks
523 
524**Check 17 -- Refusal output is verbatim from the catalogue.** If any refusal fired, the catalogue text appears unchanged in the output. The model may add explanation around it but the catalogue text itself is verbatim.
525 
526**Check 18 -- No invented refusal codes.** Every refusal code in the output exists in the prohibition framework or in a loaded content skill's catalogue. If the model encountered a novel fact pattern, it used the content-mismatch fallback, not a fabricated code.
527 
528### Failure handling
529 
530If any check fails, fix the output and re-run all checks. Do not deliver until all pass. If a check fails twice in a row on the same item, stop and report the failure to the user explicitly -- repeated failure usually indicates a deeper issue the model cannot fix on its own.
531 
532---
533 
534## Section 6 -- Prohibition framework
535 
536This section defines how hard stops (refusals) are structured across the system. The universal base does not contain jurisdiction-specific refusals -- those live in the content skills and regional layers. This section defines the rules that govern all refusals everywhere.
537 
538### The verbatim rule
539 
540When a refusal fires, output the refusal message text from the relevant catalogue verbatim. The model may add explanation, context, or recommendations around the verbatim text -- identifying which facts triggered the refusal, recommending next steps -- but the catalogue text itself must appear unchanged. Paraphrasing, softening, or recombining catalogue text is a workflow violation. Self-check 17 verifies this.
541 
542The verbatim rule exists because catalogue language has been deliberately chosen to be precise and defensible. A reviewer reading the refusal output should see the same words every time, so they can recognize the refusal pattern at a glance.
543 
544### The "no invented codes" meta-rule
545 
546If a fact pattern looks like it should trigger a refusal but no code in the loaded catalogues matches, do NOT invent a new code. Instead:
547 
5481. If the situation is similar to an existing refusal, use the closest existing code and note in the explanation that the fact pattern is adjacent but not identical.
5492. If the situation is genuinely novel, use the content-mismatch fallback code with an explanation naming what facts the loaded skills cannot handle, and recommend the user consult a credentialed professional.
5503. If uncertain whether the fact pattern requires a refusal at all, ask the user a clarifying question rather than refusing prematurely.
551 
552The model may NOT invent a refusal code that does not appear in a loaded catalogue. Self-check 18 verifies this.
553 
554### The catalogue is the floor
555 
556Content skills and regional layers add to the refusal system with their own catalogues. The refusal trace in the reviewer brief lists all codes from all loaded catalogues.
557 
558### Conflict resolution
559 
560- If both a regional/directive layer refusal and a country/content skill refusal fire for the same situation, fire the more specific one (typically the country/content skill's).
561- Both appear in the refusal trace regardless of which was fired.
562 
563### Universal refusal triggers
564 
565The following triggers apply regardless of jurisdiction. Content skills define jurisdiction-specific triggers on top of these.
566 
567**R-REVIEWER-MISSING -- No reviewer in the loop.**
568Trigger: The user asks the model to address output to the taxpayer/business owner directly, to produce filing-ready output without professional review, or to remove the reviewer from the workflow.
569Output: "This product is built on a load-bearing assumption: every output is reviewed and signed off by a credentialed professional in the relevant jurisdiction. The reviewer is the immediate consumer of the output, not the taxpayer. I cannot produce output without the reviewer-in-the-loop assumption being satisfied. If you are working with a credentialed reviewer, I am happy to continue with the brief addressed to them. If you need a licensed professional, visit openaccountants.com."
570 
571**R-CONTENT-MISMATCH -- No loaded skill covers this situation.**
572Trigger: The user's request requires a content skill that is not loaded, OR a fact pattern is refusable but no specific code in the loaded catalogues covers it.
573Output: "I need a different content skill loaded to handle this request, OR the fact pattern involves [specify what] which is outside the scope of the currently loaded skills. The loaded skills are [list]. Please [load the appropriate skill OR consult a credentialed professional]."
574 
575---
576 
577## Section 7 -- Companion skill contract
578 
579Every content skill loaded alongside this workflow base MUST provide the following. The content skill is incomplete without all mandatory slots. This base is incomplete without at least one content skill.
580 
581### Mandatory slots
582 
5831. **Scope statement.** What the skill covers and what it does not.
5842. **Period coverage.** The period(s) the skill is current for, with currency date and applicable legislation.
5853. **Period-specific figures.** All rates, thresholds, limits, and indexed figures in one place with primary source citations.
5864. **Primary source library.** Every statute, regulation, ruling, and guidance document the skill cites.
5875. **Position rules.** The actual classification, computation, or treatment rules with trigger conditions, conservative defaults, citations, and worked examples.
5886. **Topical refusal catalogue.** Refusals specific to this skill, with code, trigger, and verbatim output message.
5897. **Conservative defaults table.** The skill's concrete defaults for each ambiguity type.
5908. **Reviewer attention thresholds.** Cash thresholds at which a position becomes a reviewer flag regardless of certainty.
5919. **Worked examples.** Minimum 5 fully worked positions from hypothetical (not real test) data.
59210. **Output format extension.** Any additions to the standard reviewer brief template.
59311. **Intake form additions.** Skill-specific questions for the structured question form.
59412. **Self-check additions.** Topical checks on top of the base checks.
59513. **Currency and revision metadata.** Version number, currency date, change log.
596 
597### Optional slots
598 
59914. **Supporting working paper specification.** Structure of any skill-specific working paper.
60015. **Cross-skill references.** How this skill's outputs feed other skills.
60116. **Sectoral notes.** Patterns specific to common business types in the jurisdiction.
602 
603If any mandatory slot is missing, refuse to proceed and tell the user the content skill is incomplete.
604 
605---
606 
607## Section 8 -- How this base interacts with companion skills
608 
609This base defines workflow architecture. Content skills define substantive rules. The division is strict:
610 
611**This file owns:**
612- The workflow runbook (Section 2)
613- The conservative defaults principle (Section 1.1)
614- The execution pacing rule (Section 1.3)
615- The citation discipline principle (Section 1.4)
616- The output specification (Section 3)
617- The structured question form rules (Section 4)
618- The self-check framework (Section 5)
619- The prohibition framework (Section 6)
620- The companion skill contract (Section 7)
621 
622**Each content skill owns:**
623- Its scope statement and period coverage
624- Its rates, thresholds, and period-specific figures
625- Its position rules and classification logic
626- Its primary source library
627- Its topical refusal catalogue
628- Its conservative defaults table
629- Its worked examples
630- Its intake additions and self-check additions
631- Its version and change log
632 
633**Conflict resolution:**
634- If a content skill and this base disagree on procedure, this base wins.
635- If a content skill states a substantive rule and this base is silent, the content skill wins.
636- If two content skills conflict on a position, the skill closer to the actual filing form line wins.
637- A content skill should not redefine the workflow, output specification, question form, self-checks, or prohibition framework. If it does, fall back to the base versions.
638 
639---
640 
641## Section 9 -- Reference material
642 
643### Validation status
644 
645This file is v0.1 of `workflow-base`, created April 2026 as a consolidation of the shared architectural principles from `us-tax-workflow-base` v0.2 and `vat-workflow-base` v0.2.0. Both of those files remain in production for their respective skill stacks (US federal income tax and EU/international VAT). This universal base is for all new skills going forward.
646 
647### Architectural lineage
648 
649The workflow runbook, conservative defaults principle, three-output specification, structured question form, self-check methodology, reviewer brief template, Excel working paper conventions, refusal trace mechanism, and companion skill contract were originally developed in `vat-workflow-base` v0.1 (April 2026) for the Accora Malta VAT engine, then lifted into `us-tax-workflow-base` v0.1 with US adaptations. This universal base extracts the jurisdiction-agnostic core that both share.
650 
651### What this base does NOT contain (stays in content skills)
652 
653- Jurisdiction-specific refusals (e.g., R-US-PARTNERSHIP, R-US-CRYPTO) -- those stay in the US intake and content skills
654- VAT-specific classification pipeline (two-tier supplier pattern lookup) -- stays in VAT content skills
655- Country-specific forms, rates, thresholds -- stays in content skills
656- Dependency chains and skill sequencing -- stays in country assembly orchestrators
657- US-specific citation hierarchy (IRC, Treasury Reg, Rev. Rul., etc.) -- stays in `us-tax-workflow-base`
658 
659### Known gaps
660 
6611. The self-checks are deterministic but not exhaustive. They catch execution errors, not conceptual misunderstandings.
6622. The 10-question maximum is a heuristic, not a measured optimum.
6633. The reviewer attention threshold mechanism is delegated to content skills without a base-level minimum.
6644. Citation discipline assumes the model can produce accurate primary source citations. The fallback instruction to flag uncertain cites is the mitigation.
6655. The Excel template structure has not yet been validated against real practitioner feedback across all jurisdictions.
666 
667### Change log
668 
669- **v0.1 (April 2026):** Initial creation. Extracted jurisdiction-agnostic principles from `us-tax-workflow-base` v0.2 and `vat-workflow-base` v0.2.0. Establishes the universal contract for all new skills.
670 
671### Self-check (of this document)
672 
6731. Workflow at top of file after principles: yes (Section 2).
6742. Imperatives not descriptions: yes throughout.
6753. Output specification mandates Excel + brief + action list + review checklist: yes (Section 3).
6764. Structured question form rules present: yes (Section 4).
6775. Self-check framework present: yes (Section 5, eighteen checks).
6786. No tax content, no rates, no thresholds, no form references, no jurisdiction-specific figures: verified.
6797. Companion skill contract present: yes (Section 7, 13 mandatory + 3 optional).
6808. Inferred-profile-first ordering: yes (Step 3 before Step 4).
6819. Prohibition framework present: yes (Section 6).
68210. Citation discipline as a first-class principle: yes (Section 1.4).
68311. Reviewer assumed throughout: yes.
68412. Reference material at bottom: yes (Section 9).
685 
686## End of Universal Workflow Base v0.1
687 
688This base is incomplete without at least one content skill loaded alongside it. If you are reading this without any content skill loaded, ask the user what obligation and jurisdiction they are working on and refuse to proceed until the appropriate content skill is loaded.
689 
690 
691---
692 
693## Disclaimer
694 
695This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a CPA, EA, tax attorney, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.
696 
697The most up-to-date, verified version of this skill is maintained at [openaccountants.com](https://openaccountants.com). Log in to access the latest version, request a professional review from a licensed accountant, and track updates as tax law changes.
698 

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About

Universal workflow base for all tax and compliance skills worldwide. Contains jurisdiction-agnostic workflow architecture — conservative defaults principle, reviewer assumption, output specification (Excel working paper + reviewer brief + action list), self-check framework, confidence tier definitions, execution pacing, citation discipline, and prohibition framework. No tax content, no rates, no thresholds, no form references, no country-specific rules. MUST be loaded alongside at least one content skill that provides the actual rules for the relevant obligation and jurisdiction. Every output is reviewed by a credentialed professional before filing.

USty-2025

29 of 31 in the US workflow: