IB Deck Checker

Perform comprehensive QC on investment banking presentations across four dimensions.

Prerequisites

Extract presentation content before checking:

python

-m

markitdown presentation.pptx

>

content.md

For visual inspection, convert to images using the

pptx

skill workflow.

Check Workflow

1. Number Consistency

Extract numbers with slide references:

python scripts/extract_numbers.py content.md

--check

Verify:

Key metrics match across all slides (revenue, EBITDA, multiples)

Calculations are correct (totals, percentages, growth rates)

Units consistent (same scale used: millions vs billions, % vs bps)

Unit formatting consistent (e.g., $M vs $MM, $B vs $Bn - pick one style throughout)

Time periods aligned (FY vs LTM vs quarterly)

Flag pattern:

ISSUE: Revenue mismatch

- $500M on Slides 3, 8

- $485M on Slide 15 (DCF input)

ACTION: Reconcile figures

2. Data-Narrative Alignment

Map claims to supporting data:

Trend statements → chart directions

Market position claims → revenue/share data

Factual assertions → verify accuracy

Flag contradictions:

ISSUE: Narrative contradicts data

- Slide 4: "declining margins"

- Slide 7 chart: margins 18% → 22%

ACTION: Update narrative or verify data

Check plausibility (e.g., "#1 player in $100B market" with $200M revenue = 0.2% share).

3. Language Polish

Scan for:

Casual phrasing ("pretty good", "a lot of")

Vague quantifiers without specifics

Contractions, exclamation points

Inconsistent terminology

See

references/ib-terminology.md

for replacement patterns.

Flag pattern:

ISSUE: Casual language (Slide 12)

- "This deal is a no-brainer"

→ "The transaction presents a compelling value proposition"

4. Formatting QC

Audit each slide for:

Charts

Source citations, axis labels, legends

Typography

Consistent fonts, size hierarchy

Numbers

Consistent formatting (1,000 vs 1K)

Dates

Consistent format throughout

Footnotes

Proper sourcing and disclaimers

Output

Present findings using the template in

references/report-format.md

.

Categorize by severity:

Critical

Number mismatches, factual errors

Important

Language, narrative alignment

Minor

Formatting inconsistencies