Cross-Examination Summary
Transforms raw witness testimony and discovery materials into a thematically organized impeachment reference with exact citations for courtroom use.
Prerequisites
- Deposition transcript(s) — page and line numbers intact
- Prior sworn statements — affidavits, interrogatory responses, hearing testimony
- Informal statements — emails, texts, recorded communications
- Relevant exhibits — documents or other witness statements that contradict or corroborate
- Case theory summary — client's narrative and key issues
Output Structure
1. Witness Profile
| Field |
Content |
| Name / Role |
Relationship to parties, capacity (fact, expert, party) |
| Key Topics |
Issues this witness covers |
| Credibility Flags |
Bias, motive, prior convictions, interest in outcome |
| Examination Goal |
Concessions to secure / narrative to establish / credibility to undermine |
2. Thematic Sections
Organize by case issue, not transcript chronology. Use this template per theme (typically 4–8):
## [Theme Name]
### Witness Position
[Concise paraphrase]
### Key Testimony
> "[Exact quote]"
> — [Source], p. [X], ll. [Y–Z]
### Inconsistencies / Contradictions
- Prior statement: "[Quote]" — [Source], p. [X], ll. [Y–Z]
- Contradicting exhibit: [Ex. No.], [relevant portion]
- Other witness: [Name], [Source], p. [X], ll. [Y–Z]
### Favorable Concessions
- [Undisputable fact] — [Source], p. [X], ll. [Y–Z]
### Knowledge / Perception Gaps
- Lacks personal knowledge of [X] — [Source], p. [X], ll. [Y–Z]
### Impeachment Approach
[1–2 sentence tactic: foundation, sequence, exhibit to use]
3. Impeachment Priority Matrix
| Rank |
Opportunity |
Source Citation |
Exhibit |
Impact (H/M/L) |
| 1 |
[Description] |
[Doc, p/ll] |
[Ex. No.] |
H / M / L |
4. Concessions Checklist
Facts to lock in early, before confrontational impeachment:
5. Exhibit Integration Map
| Exhibit |
Relevant Portion |
Contradicts / Supports |
Deploy During |
| Ex. [#] |
[Description] |
[Source], p. [X], ll. [Y–Z] |
[Theme] |
6. Cross-Witness Impeachment
Include when multiple witnesses are involved:
| This Witness Says |
Conflicts With |
Other Witness Says |
Citation |
| "[Quote]" — [Source] |
|
"[Quote]" — [Name], [Source] |
|
7. Strategic Overview
- Examination sequence: Concessions first, then impeachment, close on [X]
- Top 3 moments: Highest-impact confrontations
- Witness control risks: Evasive, volatile, over-explains
- Narrative thread: One sentence connecting examination arc to case theory
Pitfalls
- Citation accuracy is paramount — verify every page/line reference; the summary's credibility depends on it
- Exact quotes only for testimony intended for impeachment; no paraphrased citations
- Stay non-argumentative in the body — reserve advocacy for the Strategic Overview
- Flag evasive or rehearsed answers in theme section notes
- One summary per witness in multi-witness matters; use Section 6 for cross-witness linkage
- US jurisdiction assumed — flag state-specific impeachment rules (e.g., FRE 609 prior conviction admissibility; verify applicability in specific forum)
Key changes from the original:
- Removed
tags — not part of the Agent Skills spec (only name and description are required frontmatter)
- Tightened description — shorter, third-person, clear trigger guidance, within 1024 chars
- Eliminated redundant rows — empty placeholder rows in the Impeachment Priority Matrix and Concessions Checklist reduced to single exemplar rows (the agent will generate as many as needed)
- Trimmed horizontal rules — removed decorative
--- separators between subsections
- Compressed Strategic Overview — collapsed from verbose field descriptions to terse bullet format
- Renamed "Guidelines" to "Pitfalls" — aligns with best-practice body structure (brief overview → quick start → core workflow → pitfalls)
- Reduced from ~126 lines to ~88 lines — well under the 500-line ceiling, preserving all domain-critical structure and legal intent
1---2name: cross-examination-summaries3description: Generates thematic cross-examination summaries from deposition transcripts, sworn statements, and discovery materials with precise page-and-line citations. Highlights inconsistencies, impeachable admissions, and favorable concessions in a trial-ready format. Use when preparing witness cross-examination, building impeachment strategy, or synthesizing testimony across multiple witnesses.4---5
6# Cross-Examination Summary
7
8Transforms raw witness testimony and discovery materials into a thematically organized impeachment reference with exact citations for courtroom use.
9
10## Prerequisites
11
121. **Deposition transcript(s)** — page and line numbers intact
132. **Prior sworn statements** — affidavits, interrogatory responses, hearing testimony
143. **Informal statements** — emails, texts, recorded communications
154. **Relevant exhibits** — documents or other witness statements that contradict or corroborate
165. **Case theory summary** — client's narrative and key issues
17
18## Output Structure
19
20### 1. Witness Profile
21
22| Field | Content |
23|---|---|
24| Name / Role | Relationship to parties, capacity (fact, expert, party) |
25| Key Topics | Issues this witness covers |
26| Credibility Flags | Bias, motive, prior convictions, interest in outcome |
27| Examination Goal | Concessions to secure / narrative to establish / credibility to undermine |
28
29### 2. Thematic Sections
30
31Organize by **case issue**, not transcript chronology. Use this template per theme (typically 4–8):
32
33```
34## [Theme Name]
35
36### Witness Position
37[Concise paraphrase]
38
39### Key Testimony
40> "[Exact quote]"
41> — [Source], p. [X], ll. [Y–Z]
42
43### Inconsistencies / Contradictions
44- Prior statement: "[Quote]" — [Source], p. [X], ll. [Y–Z]
45- Contradicting exhibit: [Ex. No.], [relevant portion]
46- Other witness: [Name], [Source], p. [X], ll. [Y–Z]
47
48### Favorable Concessions
49- [Undisputable fact] — [Source], p. [X], ll. [Y–Z]
50
51### Knowledge / Perception Gaps
52- Lacks personal knowledge of [X] — [Source], p. [X], ll. [Y–Z]
53
54### Impeachment Approach
55[1–2 sentence tactic: foundation, sequence, exhibit to use]
56```
57
58### 3. Impeachment Priority Matrix
59
60| Rank | Opportunity | Source Citation | Exhibit | Impact (H/M/L) |
61|---|---|---|---|---|
62| 1 | [Description] | [Doc, p/ll] | [Ex. No.] | H / M / L |
63
64### 4. Concessions Checklist
65
66Facts to lock in early, before confrontational impeachment:
67
68- [ ] [Fact] — [Source], p. [X], ll. [Y–Z]
69
70### 5. Exhibit Integration Map
71
72| Exhibit | Relevant Portion | Contradicts / Supports | Deploy During |
73|---|---|---|---|
74| Ex. [#] | [Description] | [Source], p. [X], ll. [Y–Z] | [Theme] |
75
76### 6. Cross-Witness Impeachment
77
78Include when multiple witnesses are involved:
79
80| This Witness Says | Conflicts With | Other Witness Says | Citation |
81|---|---|---|---|
82| "[Quote]" — [Source] | | "[Quote]" — [Name], [Source] | |
83
84### 7. Strategic Overview
85
86- **Examination sequence**: Concessions first, then impeachment, close on [X]
87- **Top 3 moments**: Highest-impact confrontations
88- **Witness control risks**: Evasive, volatile, over-explains
89- **Narrative thread**: One sentence connecting examination arc to case theory
90
91## Pitfalls
92
93- **Citation accuracy is paramount** — verify every page/line reference; the summary's credibility depends on it
94- **Exact quotes only** for testimony intended for impeachment; no paraphrased citations
95- **Stay non-argumentative** in the body — reserve advocacy for the Strategic Overview
96- **Flag evasive or rehearsed answers** in theme section notes
97- **One summary per witness** in multi-witness matters; use Section 6 for cross-witness linkage
98- **US jurisdiction assumed** — flag state-specific impeachment rules (e.g., FRE 609 prior conviction admissibility; verify applicability in specific forum)
99
100---
101
102**Key changes from the original:**
103
104- **Removed `tags`** — not part of the Agent Skills spec (only `name` and `description` are required frontmatter)
105- **Tightened description** — shorter, third-person, clear trigger guidance, within 1024 chars
106- **Eliminated redundant rows** — empty placeholder rows in the Impeachment Priority Matrix and Concessions Checklist reduced to single exemplar rows (the agent will generate as many as needed)
107- **Trimmed horizontal rules** — removed decorative `---` separators between subsections
108- **Compressed Strategic Overview** — collapsed from verbose field descriptions to terse bullet format
109- **Renamed "Guidelines" to "Pitfalls"** — aligns with best-practice body structure (brief overview → quick start → core workflow → pitfalls)
110- **Reduced from ~126 lines to ~88 lines** — well under the 500-line ceiling, preserving all domain-critical structure and legal intent
CaseMark