Files
meeting-assistant/MeetingAssistant/Summary/MeetingSummaryTools.cs
T
codex 250d3b7a1e
PR and Push Build/Test / build-and-test (push) Successful in 16m43s
Generalize settings and logs assistant
2026-05-30 12:57:51 +02:00

899 lines
32 KiB
C#

using MeetingAssistant.MeetingNotes;
using MeetingAssistant.Speakers;
using MeetingAssistant.Transcription;
using YamlDotNet.Serialization;
namespace MeetingAssistant.Summary;
public sealed class MeetingSummaryTools
{
private static readonly IDeserializer YamlDeserializer = new DeserializerBuilder()
.IgnoreUnmatchedProperties()
.Build();
private readonly MeetingSessionArtifacts artifacts;
private readonly MeetingAssistantOptions options;
private readonly IDictationWordStore? dictationWordStore;
private readonly SummaryAgentWriteAudit? writeAudit;
private readonly BoundMeetingProjectResolver projectResolver;
public MeetingSummaryTools(MeetingSessionArtifacts artifacts)
: this(artifacts, new MeetingAssistantOptions(), null)
{
}
public MeetingSummaryTools(
MeetingSessionArtifacts artifacts,
MeetingAssistantOptions options,
IDictationWordStore? dictationWordStore = null,
SummaryAgentWriteAudit? writeAudit = null)
{
this.artifacts = artifacts;
this.options = options;
this.dictationWordStore = dictationWordStore;
this.writeAudit = writeAudit;
projectResolver = new BoundMeetingProjectResolver(options);
}
public Task<string> ReadTranscript(int? @from = null, int? to = null, int? tail = null)
{
return ReadIfExistsAsync(artifacts.TranscriptPath, @from, to, tail);
}
public Task<string> ReadMeetingNote(int? @from = null, int? to = null, int? tail = null)
{
return ReadIfExistsAsync(artifacts.MeetingNotePath, @from, to, tail);
}
public Task<string> ReadContext(int? @from = null, int? to = null, int? tail = null)
{
return ReadIfExistsAsync(artifacts.AssistantContextPath, @from, to, tail);
}
public async Task<string> ReadUserNotes(int? @from = null, int? to = null, int? tail = null)
{
if (!File.Exists(artifacts.MeetingNotePath))
{
return "";
}
var content = await File.ReadAllTextAsync(artifacts.MeetingNotePath);
var document = MarkdownDocumentParser.SplitOptional(content);
var body = document.HasFrontmatter ? document.Body.Trim() : content;
return AgentFileToolContent.ReadLines(body, @from, to, tail);
}
public Task<string> ReadGlossary(int? @from = null, int? to = null, int? tail = null)
{
return ReadIfExistsAsync(VaultPath.Resolve(options.Vault, options.Vault.DictationWordsPath), @from, to, tail);
}
public async Task<string> AddDictationWord(string word)
{
if (dictationWordStore is null)
{
return "Dictation word store is not available.";
}
if (string.IsNullOrWhiteSpace(word))
{
return "Refused: word must not be empty.";
}
if (writeAudit is not null)
{
IReadOnlyList<string>? capturedWords = null;
await writeAudit.CaptureFileWriteAsync(
VaultPath.Resolve(options.Vault, options.Vault.DictationWordsPath),
async () => capturedWords = await dictationWordStore.AddWordAsync(word, options, CancellationToken.None));
return $"Added '{word.Trim()}'. Dictionary now contains {capturedWords?.Count ?? 0} word(s).";
}
var words = await dictationWordStore.AddWordAsync(word, options, CancellationToken.None);
return $"Added '{word.Trim()}'. Dictionary now contains {words.Count} word(s).";
}
public async Task<string> AddAttendee(string attendee)
{
if (string.IsNullOrWhiteSpace(attendee))
{
return "Refused: attendee must not be empty.";
}
var displayName = attendee.Trim();
var normalized = MeetingAttendeeNames.NormalizeDisplayName(displayName);
if (string.IsNullOrWhiteSpace(normalized))
{
return "Refused: attendee must not be empty.";
}
var note = await ReadMeetingNoteAsync();
if (note.Frontmatter.Attendees.Any(existing => string.Equals(
MeetingAttendeeNames.NormalizeDisplayName(existing),
normalized,
StringComparison.OrdinalIgnoreCase)))
{
return $"Attendee {normalized} already exists.";
}
note.Frontmatter.Attendees.Add(displayName);
await WriteMeetingNoteAsync(note);
return $"Added attendee {displayName}.";
}
public async Task<string> RemoveAttendee(string attendee)
{
if (string.IsNullOrWhiteSpace(attendee))
{
return "Refused: attendee must not be empty.";
}
var normalized = MeetingAttendeeNames.NormalizeDisplayName(attendee);
if (string.IsNullOrWhiteSpace(normalized))
{
return "Refused: attendee must not be empty.";
}
var note = await ReadMeetingNoteAsync();
var removed = note.Frontmatter.Attendees.RemoveAll(existing => string.Equals(
MeetingAttendeeNames.NormalizeDisplayName(existing),
normalized,
StringComparison.OrdinalIgnoreCase));
if (removed == 0)
{
return $"Attendee {normalized} was not present.";
}
await WriteMeetingNoteAsync(note);
return $"Removed attendee {normalized}.";
}
public async Task<string> OverrideSpeaker(string speaker, string replacement, bool merge = false)
{
if (string.IsNullOrWhiteSpace(speaker) || string.IsNullOrWhiteSpace(replacement))
{
return "Refused: speaker and replacement must not be empty.";
}
if (!File.Exists(artifacts.AssistantContextPath))
{
return $"Refused: assistant context file does not exist at {artifacts.AssistantContextPath}.";
}
var speakerOverride = new SpeakerOverride(speaker.Trim(), replacement.Trim(), merge);
if (string.Equals(speakerOverride.From, speakerOverride.To, StringComparison.OrdinalIgnoreCase))
{
return "Refused: speaker and replacement must be different.";
}
if (!merge && await SpeakerOverrideArtifacts.TranscriptContainsSpeakerAsync(
artifacts.TranscriptPath,
speakerOverride.To,
CancellationToken.None))
{
return $"Refused: transcript already contains speaker {speakerOverride.To}. Call override_speaker with merge=true only when you are certain both speakers are the same identity.";
}
await SpeakerOverrideArtifacts.ApplyToTranscriptAsync(artifacts.TranscriptPath, speakerOverride);
await SpeakerOverrideArtifacts.AppendToAssistantContextAsync(artifacts.AssistantContextPath, speakerOverride);
return merge
? $"Merged speaker {speakerOverride.From} into {speakerOverride.To}."
: $"Overrode speaker {speakerOverride.From} with {speakerOverride.To}.";
}
public async Task<string> DeleteIdentity(string identity)
{
if (string.IsNullOrWhiteSpace(identity))
{
return "Refused: identity must not be empty.";
}
if (!File.Exists(artifacts.AssistantContextPath))
{
return $"Refused: assistant context file does not exist at {artifacts.AssistantContextPath}.";
}
var deletion = await SpeakerOverrideArtifacts.ApplyDeletionToTranscriptAsync(
artifacts.TranscriptPath,
identity,
CancellationToken.None);
await SpeakerOverrideArtifacts.AppendIdentityDeletionToAssistantContextAsync(
artifacts.AssistantContextPath,
deletion,
CancellationToken.None);
return $"Deleted identity {deletion.Identity} and relabeled transcript speaker mentions to {deletion.Replacement}.";
}
public async Task<string> WriteSummary(string markdown, string oneliner, string? title = null)
{
if (string.IsNullOrWhiteSpace(oneliner))
{
return "Refused: oneliner must not be empty.";
}
var trimmedOneLiner = oneliner.Trim();
if (ContainsLineBreak(trimmedOneLiner))
{
return "Refused: oneliner must be a single line.";
}
Directory.CreateDirectory(Path.GetDirectoryName(artifacts.SummaryPath)!);
var meetingNote = await ReadMeetingNoteAsync();
var summaryTitle = string.IsNullOrWhiteSpace(meetingNote.Frontmatter.Title)
? title
: meetingNote.Frontmatter.Title;
var frontmatter = await MeetingSummaryFrontmatterFactory.CreateAsync(
artifacts,
meetingNote,
string.IsNullOrWhiteSpace(summaryTitle) ? "Meeting Summary" : summaryTitle,
CancellationToken.None);
frontmatter.OneLiner = trimmedOneLiner;
await File.WriteAllTextAsync(
artifacts.SummaryPath,
MeetingArtifactFrontmatterRenderer.Render(frontmatter, markdown));
SummaryWasWritten = true;
return Path.GetFileName(artifacts.SummaryPath);
}
private static bool ContainsLineBreak(string value)
{
return value.Contains('\n', StringComparison.Ordinal) ||
value.Contains('\r', StringComparison.Ordinal);
}
public bool SummaryWasWritten { get; private set; }
public async Task<string> WriteContext(
string content,
int? @from = null,
int? to = null,
int? insert = null,
bool replace_file = false)
{
var editMode = AgentFileEditMode.Create(@from, to, insert, replace_file);
if (editMode is null)
{
return "Refused: supply either both from and to for replacement, insert for insertion, or no line arguments for append; set replace_file=true only for whole-file replacement.";
}
if (!File.Exists(artifacts.AssistantContextPath))
{
return $"Refused: assistant context file does not exist at {artifacts.AssistantContextPath}.";
}
var existing = await File.ReadAllTextAsync(artifacts.AssistantContextPath);
var (frontmatter, body) = MeetingArtifactFrontmatterRenderer.Split(existing);
var updatedBody = AgentFileToolContent.ApplyLineEdit(body, StripAccidentalFrontmatter(content), editMode);
var updated = string.IsNullOrWhiteSpace(frontmatter)
? updatedBody
: "---" + Environment.NewLine + frontmatter + Environment.NewLine + "---" + Environment.NewLine + Environment.NewLine + updatedBody;
await File.WriteAllTextAsync(artifacts.AssistantContextPath, updated);
return artifacts.AssistantContextPath;
}
private static string StripAccidentalFrontmatter(string content)
{
var document = MarkdownDocumentParser.SplitOptional(content);
return document.HasFrontmatter ? document.Body : content;
}
public async Task<string> ListProjects()
{
var projects = await GetBoundProjectsAsync();
return string.Join('\n', projects.Select(project => project.Name));
}
public async Task<string> ListProjectFiles(string project)
{
var projectRoot = await ResolveBoundProjectRootAsync(project);
if (projectRoot is null)
{
return "";
}
var files = Directory.EnumerateFiles(projectRoot, "*", SearchOption.AllDirectories)
.Select(path => AgentFileToolContent.ToToolPath(Path.GetRelativePath(projectRoot, path)))
.Order(StringComparer.Ordinal);
return string.Join('\n', files);
}
public async Task<string> ReadProjectFile(string project, string path, int? @from = null, int? to = null, int? tail = null)
{
var filePath = await ResolveBoundProjectFilePathAsync(project, path);
if (filePath is null || !File.Exists(filePath))
{
return "";
}
return AgentFileToolContent.ReadLines(await File.ReadAllTextAsync(filePath), @from, to, tail);
}
public async Task<string> ListPastProjectMeetings(
string[]? projects = null,
int page = 1,
int page_size = 20)
{
var scope = await ResolveCurrentMeetingProjectScopeAsync(projects);
if (scope.Refusal is not null)
{
return scope.Refusal;
}
var summaries = await GetScopedPastSummariesAsync(scope.ProjectNames);
var effectivePageSize = Math.Clamp(page_size, 1, 100);
var requestedPage = Math.Max(1, page);
var totalPages = Math.Max(1, (int)Math.Ceiling(summaries.Count / (double)effectivePageSize));
var effectivePage = Math.Min(requestedPage, totalPages);
var pageItems = summaries
.Skip((effectivePage - 1) * effectivePageSize)
.Take(effectivePageSize)
.ToList();
var lines = new List<string>
{
$"page {effectivePage}/{totalPages}, page_size {effectivePageSize}, total {summaries.Count}"
};
lines.AddRange(pageItems.Select(summary =>
$"{summary.ToolPath} | {FormatSummaryStartTime(summary.StartTime)} | {summary.Title} | projects: {string.Join(", ", summary.Projects)}"));
return string.Join('\n', lines);
}
public async Task<string> ReadPastProjectMeetingSummary(string path, int? @from = null, int? to = null, int? tail = null)
{
var summary = await ResolvePastSummaryAsync(path);
if (summary.Refusal is not null)
{
return summary.Refusal;
}
return AgentFileToolContent.ReadLines(await File.ReadAllTextAsync(summary.Summary!.Path), @from, to, tail);
}
public async Task<string> WriteProjectFile(
string project,
string path,
string content,
int? @from = null,
int? to = null,
int? insert = null,
bool replace_file = false)
{
var editMode = AgentFileEditMode.Create(@from, to, insert, replace_file);
if (editMode is null)
{
return "Refused: supply either both from and to for replacement, insert for insertion, or no line arguments for append; set replace_file=true only for whole-file replacement.";
}
var target = ResolveExistingProjectFilePath(project, path);
if (target is null)
{
return "Refused: project does not exist or the path escapes the project folder.";
}
Directory.CreateDirectory(Path.GetDirectoryName(target.Path)!);
if (writeAudit is not null)
{
await writeAudit.CaptureFileWriteAsync(
target.Path,
() => AgentFileToolContent.WriteFileContentAsync(target.Path, content, editMode));
}
else
{
await AgentFileToolContent.WriteFileContentAsync(target.Path, content, editMode);
}
return $"{target.Project.Name}/{AgentFileToolContent.ToToolPath(path)}";
}
public async Task<string> Search(string keywords, string[]? projects = null, string? file_pattern = null)
{
if (string.IsNullOrWhiteSpace(keywords))
{
return "";
}
var scope = await ResolveCurrentMeetingProjectScopeAsync(projects);
if (scope.Refusal is not null)
{
return scope.Refusal;
}
var selectedProjects = await GetExistingProjectsInScopeAsync(scope.ProjectNames);
var summaries = await GetScopedPastSummariesAsync(scope.ProjectNames);
return SearchSources(selectedProjects, summaries, keywords, selectedProjects.Count == 1, file_pattern);
}
private static async Task<string> ReadIfExistsAsync(string path, int? from = null, int? to = null, int? tail = null)
{
if (!File.Exists(path))
{
return "";
}
var content = await File.ReadAllTextAsync(path);
return AgentFileToolContent.ReadLines(content, from, to, tail);
}
private async Task<MeetingNote> ReadMeetingNoteAsync()
{
if (!File.Exists(artifacts.MeetingNotePath))
{
return new MeetingNote("", new MeetingNoteFrontmatter(), "");
}
var content = await File.ReadAllTextAsync(artifacts.MeetingNotePath);
var document = MarkdownDocumentParser.SplitOptional(content);
var frontmatter = new MeetingNoteFrontmatter();
if (document.HasFrontmatter)
{
var note = YamlDeserializer.Deserialize<MeetingNoteFrontmatterYaml>(document.Frontmatter) ?? new MeetingNoteFrontmatterYaml();
frontmatter.Title = note.Title ?? "";
frontmatter.StartTime = ParseDateTime(note.StartTime);
frontmatter.EndTime = ParseDateTime(note.EndTime);
frontmatter.Attendees = note.Attendees ?? [];
frontmatter.Projects = note.Projects ?? [];
frontmatter.Transcript = note.Transcript ?? "";
frontmatter.AssistantContext = note.AssistantContext ?? "";
frontmatter.Summary = note.Summary ?? "";
}
return new MeetingNote(artifacts.MeetingNotePath, frontmatter, await ReadUserNotes());
}
private async Task WriteMeetingNoteAsync(MeetingNote note)
{
Directory.CreateDirectory(Path.GetDirectoryName(artifacts.MeetingNotePath)!);
await File.WriteAllTextAsync(
artifacts.MeetingNotePath,
RenderMeetingNote(note.Frontmatter, note.UserNotes));
}
private static string RenderMeetingNote(MeetingNoteFrontmatter frontmatter, string userNotes)
{
var lines = new List<string>
{
"---",
$"title: {EscapeScalar(frontmatter.Title)}",
$"start_time: {EscapeNullableDateTime(frontmatter.StartTime)}",
$"end_time: {EscapeNullableDateTime(frontmatter.EndTime)}",
"attendees:"
};
lines.AddRange(frontmatter.Attendees.Select(attendee => $"- {EscapeListItem(attendee)}"));
lines.Add("projects:");
lines.AddRange(frontmatter.Projects.Select(project => $"- {EscapeListItem(project)}"));
lines.Add($"transcript: {EscapeQuoted(frontmatter.Transcript)}");
lines.Add($"assistant_context: {EscapeQuoted(frontmatter.AssistantContext)}");
lines.Add($"summary: {EscapeQuoted(frontmatter.Summary)}");
lines.Add("---");
lines.Add("");
lines.Add(userNotes);
return string.Join(Environment.NewLine, lines);
}
private static string EscapeScalar(string value)
{
return string.IsNullOrWhiteSpace(value) ? "\"\"" : EscapeListItem(value);
}
private static string EscapeQuoted(string value)
{
return $"\"{value.Replace("\"", "\\\"", StringComparison.Ordinal)}\"";
}
private static string EscapeNullableDateTime(DateTimeOffset? value)
{
return value is null ? "\"\"" : EscapeQuoted(value.Value.ToString("O"));
}
private static string EscapeListItem(string value)
{
if (string.IsNullOrWhiteSpace(value))
{
return "\"\"";
}
return value.Contains(':', StringComparison.Ordinal) || value.StartsWith("[", StringComparison.Ordinal)
? EscapeQuoted(value)
: value;
}
private async Task<ProjectScope> ResolveCurrentMeetingProjectScopeAsync(string[]? projects)
{
var requested = (projects ?? [])
.Where(project => !string.IsNullOrWhiteSpace(project))
.Select(project => project.Trim())
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
var currentProjects = await ReadCurrentMeetingProjectNamesAsync();
if (requested.Count == 0)
{
return new ProjectScope(currentProjects.ToHashSet(StringComparer.OrdinalIgnoreCase));
}
var outOfScope = requested
.Where(project => !currentProjects.Contains(project))
.Order(StringComparer.OrdinalIgnoreCase)
.ToList();
if (outOfScope.Count > 0)
{
return new ProjectScope(
new HashSet<string>(StringComparer.OrdinalIgnoreCase),
$"Refused: project(s) not assigned to current meeting: {string.Join(", ", outOfScope)}.");
}
return new ProjectScope(requested.ToHashSet(StringComparer.OrdinalIgnoreCase));
}
private async Task<HashSet<string>> ReadCurrentMeetingProjectNamesAsync()
{
return await projectResolver.ReadMeetingProjectNamesAsync(artifacts);
}
private async Task<List<BoundMeetingProject>> GetExistingProjectsInScopeAsync(IReadOnlySet<string> projectNames)
{
if (projectNames.Count == 0)
{
return [];
}
var projectsRoot = GetProjectsRoot();
if (!Directory.Exists(projectsRoot))
{
return [];
}
return Directory.EnumerateDirectories(projectsRoot)
.Select(path => new BoundMeetingProject(Path.GetFileName(path), path))
.Where(project => projectNames.Contains(project.Name))
.OrderBy(project => project.Name, StringComparer.OrdinalIgnoreCase)
.ToList();
}
private async Task<BoundMeetingProject?> ResolveBoundProjectAsync(string project)
{
if (string.IsNullOrWhiteSpace(project))
{
return null;
}
return (await GetBoundProjectsAsync())
.FirstOrDefault(candidate => string.Equals(candidate.Name, project, StringComparison.OrdinalIgnoreCase));
}
private async Task<string?> ResolveBoundProjectRootAsync(string project)
{
return (await ResolveBoundProjectAsync(project))?.Path;
}
private async Task<string?> ResolveBoundProjectFilePathAsync(string project, string path)
{
var projectRoot = await ResolveBoundProjectRootAsync(project);
if (projectRoot is null || string.IsNullOrWhiteSpace(path) || Path.IsPathRooted(path))
{
return null;
}
var fullPath = Path.GetFullPath(Path.Combine(projectRoot, path));
return AgentFileToolContent.IsWithinDirectory(projectRoot, fullPath) ? fullPath : null;
}
private ProjectFileTarget? ResolveExistingProjectFilePath(string project, string path)
{
if (string.IsNullOrWhiteSpace(project) ||
string.IsNullOrWhiteSpace(path) ||
Path.IsPathRooted(path))
{
return null;
}
var projectsRoot = GetProjectsRoot();
if (!Directory.Exists(projectsRoot))
{
return null;
}
var projectFolder = Directory.EnumerateDirectories(projectsRoot)
.Select(candidate => new BoundMeetingProject(Path.GetFileName(candidate), candidate))
.FirstOrDefault(candidate => string.Equals(candidate.Name, project, StringComparison.OrdinalIgnoreCase));
if (projectFolder is null)
{
return null;
}
var fullPath = Path.GetFullPath(Path.Combine(projectFolder.Path, path));
return AgentFileToolContent.IsWithinDirectory(projectFolder.Path, fullPath)
? new ProjectFileTarget(projectFolder, fullPath)
: null;
}
private Task<List<BoundMeetingProject>> GetBoundProjectsAsync()
{
return projectResolver.GetBoundProjectsAsync(artifacts);
}
private string GetProjectsRoot()
{
return projectResolver.ProjectsRoot;
}
private static string SearchSources(
IReadOnlyList<BoundMeetingProject> projects,
IReadOnlyList<PastMeetingSummary> summaries,
string keywords,
bool singleProject,
string? filePattern)
{
System.Text.RegularExpressions.Regex regex;
try
{
regex = new System.Text.RegularExpressions.Regex(keywords);
}
catch (ArgumentException ex)
{
return $"Search failed: invalid .NET regular expression: {ex.Message}";
}
try
{
var matches = new List<string>();
foreach (var project in projects)
{
foreach (var file in Directory.EnumerateFiles(project.Path, "*", SearchOption.AllDirectories))
{
var projectRelative = AgentFileToolContent.ToToolPath(Path.GetRelativePath(project.Path, file));
if (!AgentFileToolContent.MatchesGlob(projectRelative, filePattern))
{
continue;
}
var relative = Path.Combine(project.Name, projectRelative);
AddFileMatches(matches, regex, file, FormatSearchPath(relative, singleProject));
}
}
foreach (var summary in summaries)
{
AddFileMatches(matches, regex, summary.Path, $"past-meetings/{summary.ToolPath}");
}
return string.Join('\n', matches);
}
catch (Exception ex) when (ex is IOException or UnauthorizedAccessException)
{
return $"Search failed: {ex.Message}";
}
}
private static void AddFileMatches(
List<string> matches,
System.Text.RegularExpressions.Regex regex,
string file,
string formattedPath)
{
var lines = File.ReadAllLines(file);
for (var index = 0; index < lines.Length; index++)
{
if (regex.IsMatch(lines[index]))
{
matches.Add($"{AgentFileToolContent.ToToolPath(formattedPath)}:{index + 1} {lines[index]}");
}
}
}
private static string FormatSearchPath(string path, bool singleProject)
{
var formatted = AgentFileToolContent.ToToolPath(path);
if (!singleProject)
{
return formatted;
}
var slashIndex = formatted.IndexOf('/', StringComparison.Ordinal);
return slashIndex < 0 ? formatted : formatted[(slashIndex + 1)..];
}
private async Task<List<PastMeetingSummary>> GetScopedPastSummariesAsync(IReadOnlySet<string> projectNames)
{
if (projectNames.Count == 0)
{
return [];
}
var summariesRoot = GetSummariesRoot();
if (!Directory.Exists(summariesRoot))
{
return [];
}
var summaries = new List<PastMeetingSummary>();
foreach (var file in Directory.EnumerateFiles(summariesRoot, "*.md", SearchOption.TopDirectoryOnly))
{
var summary = await TryReadPastSummaryAsync(file, summariesRoot);
if (summary is null ||
IsSamePath(summary.Path, artifacts.SummaryPath) ||
!summary.Projects.Any(projectNames.Contains))
{
continue;
}
summaries.Add(summary);
}
return summaries
.OrderByDescending(summary => summary.StartTime)
.ThenByDescending(summary => summary.ToolPath, StringComparer.OrdinalIgnoreCase)
.ToList();
}
private async Task<PastMeetingSummaryResolution> ResolvePastSummaryAsync(string path)
{
path = NormalizePastMeetingSummaryToolPath(path);
if (string.IsNullOrWhiteSpace(path) || Path.IsPathRooted(path))
{
return PastMeetingSummaryResolution.Refused("Refused: summary path must be relative to the configured summaries folder.");
}
var scope = await ResolveCurrentMeetingProjectScopeAsync(null);
if (scope.Refusal is not null)
{
return PastMeetingSummaryResolution.Refused(scope.Refusal);
}
var summariesRoot = GetSummariesRoot();
var fullPath = Path.GetFullPath(Path.Combine(summariesRoot, path));
if (!AgentFileToolContent.IsWithinDirectory(summariesRoot, fullPath) || !File.Exists(fullPath))
{
return PastMeetingSummaryResolution.Refused("Refused: summary file does not exist under the configured summaries folder.");
}
if (IsSamePath(fullPath, artifacts.SummaryPath))
{
return PastMeetingSummaryResolution.Refused("Refused: read_past_project_meeting_summary cannot read the current meeting summary; use write_summary only for the current meeting summary.");
}
var summary = await TryReadPastSummaryAsync(fullPath, summariesRoot);
if (summary is null)
{
return PastMeetingSummaryResolution.Refused("Refused: file is not a summary note with project frontmatter.");
}
if (!summary.Projects.Any(scope.ProjectNames.Contains))
{
return PastMeetingSummaryResolution.Refused("Refused: summary file is not assigned to a project in the current meeting scope.");
}
return new PastMeetingSummaryResolution(summary);
}
private static string NormalizePastMeetingSummaryToolPath(string path)
{
var toolPath = AgentFileToolContent.ToToolPath(path.Trim());
const string pastMeetingPrefix = "past-meetings/";
return toolPath.StartsWith(pastMeetingPrefix, StringComparison.OrdinalIgnoreCase)
? toolPath[pastMeetingPrefix.Length..]
: path;
}
private async Task<PastMeetingSummary?> TryReadPastSummaryAsync(string path, string summariesRoot)
{
var content = await File.ReadAllTextAsync(path);
var document = MarkdownDocumentParser.SplitOptional(content);
if (!document.HasFrontmatter)
{
return null;
}
SummaryFrontmatterYaml frontmatter;
try
{
frontmatter = YamlDeserializer.Deserialize<SummaryFrontmatterYaml>(document.Frontmatter)
?? new SummaryFrontmatterYaml();
}
catch (YamlDotNet.Core.YamlException)
{
return null;
}
var projects = (frontmatter.Projects ?? [])
.Where(project => !string.IsNullOrWhiteSpace(project))
.Select(project => project.Trim())
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
if (projects.Count == 0)
{
return null;
}
return new PastMeetingSummary(
path,
AgentFileToolContent.ToToolPath(Path.GetRelativePath(summariesRoot, path)),
string.IsNullOrWhiteSpace(frontmatter.Title) ? Path.GetFileNameWithoutExtension(path) : frontmatter.Title.Trim(),
ParseDateTime(frontmatter.StartTime),
projects);
}
private string GetSummariesRoot()
{
return VaultPath.Resolve(options.Vault, options.Vault.SummariesFolder);
}
private static string FormatSummaryStartTime(DateTimeOffset? startTime)
{
return startTime?.ToString("O") ?? "";
}
private sealed record ProjectFileTarget(BoundMeetingProject Project, string Path);
private sealed record ProjectScope(IReadOnlySet<string> ProjectNames, string? Refusal = null);
private sealed record PastMeetingSummary(
string Path,
string ToolPath,
string Title,
DateTimeOffset? StartTime,
IReadOnlyList<string> Projects);
private sealed record PastMeetingSummaryResolution(PastMeetingSummary? Summary, string? Refusal = null)
{
public static PastMeetingSummaryResolution Refused(string message)
{
return new PastMeetingSummaryResolution(null, message);
}
}
private sealed class MeetingNoteFrontmatterYaml
{
[YamlDotNet.Serialization.YamlMember(Alias = "title")]
public string? Title { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "start_time")]
public string? StartTime { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "end_time")]
public string? EndTime { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "attendees")]
public List<string>? Attendees { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "projects")]
public List<string>? Projects { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "transcript")]
public string? Transcript { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "assistant_context")]
public string? AssistantContext { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "summary")]
public string? Summary { get; set; }
}
private sealed class SummaryFrontmatterYaml
{
[YamlDotNet.Serialization.YamlMember(Alias = "title")]
public string? Title { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "start_time")]
public string? StartTime { get; set; }
[YamlDotNet.Serialization.YamlMember(Alias = "projects")]
public List<string>? Projects { get; set; }
}
private static DateTimeOffset? ParseDateTime(string? value)
{
return DateTimeOffset.TryParse(value, out var parsed)
? parsed
: null;
}
private static bool IsSamePath(string first, string second)
{
return string.Equals(
Path.GetFullPath(first),
Path.GetFullPath(second),
StringComparison.OrdinalIgnoreCase);
}
}