OpenCode Session Reader

读取本地 OpenCode SQLite 数据库，支持跨目录检索 session、message、part、project。

适用场景

- 列出最近会话、按目录过滤、按标题搜索
读取某个 session 的 message JSON
查看 OpenCode 数据库结构和索引（按需读取 references/schema.md）

工作流程

1. 通过 opencode db path 解析数据库路径。
所有查询只读执行，避免误写。
需要字段细节时再读取 references/schema.md。

1. 解析数据库路径

bash
if ! command -v opencode >/dev/null 2>&1; then
echo opencode command not found in PATH >&2
exit 1
fi

if ! DB_PATH=$(opencode db path 2>/dev/null); then
echo Failed to resolve OpenCode DB path via: opencode db path >&2
exit 1
fi

if [ -z ${DBPATH:-} ] || [ ! -f $DBPATH ]; then
echo OpenCode DB not found: $DB_PATH >&2
exit 1
fi

echo Using DB: $DB_PATH

列出当前存在的 DB 文件（无匹配也不会报错）：

bash
find ${XDGDATAHOME:-$HOME/.local/share}/opencode -maxdepth 1 -name *.db -print 2>/dev/null

2. 时间转换与格式化

时间转换：所有时间字段为毫秒级 Unix timestamp，可用 datetime() 直接在 SQL 中转换。

bash

在 SQL 中转换（推荐，无需外部命令）

datetime(time_updated/1000, unixepoch, localtime)

用 shell 辅助变量计算时间范围

NOW_MS=$(date +%s000) LAST7D=$((NOWMS - 7864001000)) # 最近 7 天 LAST30D=$((NOWMS - 30864001000)) # 最近 30 天

表格对齐：普通字段查询可通过 column -t -s | 对齐（SQLite 默认列分隔符为 |）；包含 message.data 这类长 JSON 字段时建议使用 -json 输出。

bash
sqlite3 -readonly $DBPATH SELECT id, title, timeupdated FROM session LIMIT 5; | column -t -s |

3. 常用只读查询

💡 不含长 JSON 字段的查询可追加 | column -t -s | 以对齐输出表格。

列出最近 20 个 session（按更新时间倒序）

bash
sqlite3 -readonly $DB_PATH \
SELECT id, title, directory,
datetime(time_updated/1000,unixepoch,localtime) as updated
FROM session
ORDER BY time_updated DESC
LIMIT 20; | column -t -s |

按目录过滤 session

bash
sqlite3 -readonly $DB_PATH \
SELECT id, title, datetime(time_updated/1000,unixepoch,localtime) as updated
FROM session
WHERE directory LIKE /path/to/project%
ORDER BY time_updated DESC
LIMIT 20; | column -t -s |

按 project_id 过滤 session（最精确的目录关联方式）

bash
sqlite3 -readonly $DB_PATH \
SELECT s.id, s.title, s.directory,
datetime(s.time_updated/1000,unixepoch,localtime) as updated
FROM session s
WHERE s.project_id = your-project-id
ORDER BY s.time_updated DESC
LIMIT 20; | column -t -s |

project_id 对应 project 表的 id 字段，可通过 SELECT id, worktree, name FROM project; 查看项目列表。

跨所有目录全量列出 session（带 project 信息）

bash
sqlite3 -readonly $DB_PATH \
SELECT s.id, s.title, s.directory, p.worktree,
datetime(s.time_updated/1000,unixepoch,localtime) as updated
FROM session s
LEFT JOIN project p ON s.project_id = p.id
ORDER BY s.time_updated DESC
LIMIT 50; | column -t -s |

按时间范围过滤

bash

最近 7 天活跃的 session

sqlite3 -readonly $DB_PATH \
SELECT id, title, datetime(time_updated/1000,unixepoch,localtime) as updated
FROM session
WHERE time_updated > $(( $(date +%s000) - 7864001000 ))
ORDER BY time_updated DESC
LIMIT 20; | column -t -s |

今天创建的 session

sqlite3 -readonly $DB_PATH \ SELECT id, title, datetime(time_created/1000,unixepoch,localtime) as created FROM session WHERE date(time_created/1000,unixepoch,localtime) = date(now,localtime) ORDER BY time_created DESC LIMIT 20; | column -t -s |

查看某 session 的消息内容

bash
sqlite3 -readonly -json $DB_PATH \
SELECT m.id, datetime(m.time_created/1000,unixepoch,localtime) as created, m.data
FROM message m
WHERE m.session_id = your-session-id
ORDER BY m.time_created ASC;

解析 message.data JSON 字段

bash

提取 role、modelID 等关键字段（json_extract）

sqlite3 -readonly $DB_PATH \
SELECT id,
json_extract(data, $.role) as role,
json_extract(data, $.modelID) as model,
datetime(time_created/1000,unixepoch,localtime) as created
FROM message
WHERE session_id = your-session-id
ORDER BY time_created ASC; | column -t -s |

搜索 message 内容（full-text like）

sqlite3 -readonly $DB_PATH \ SELECT id, jsonextract(data, $.role) as role, timecreated FROM message WHERE data LIKE %keyword% ORDER BY time_created DESC LIMIT 20; | column -t -s |

搜索 session 标题

bash
sqlite3 -readonly $DB_PATH \
SELECT id, title, directory, datetime(time_updated/1000,unixepoch,localtime) as updated
FROM session
WHERE title LIKE %keyword%
ORDER BY time_updated DESC
LIMIT 20; | column -t -s |

查看会话统计

bash
sqlite3 -readonly $DB_PATH \
SELECT title, summaryadditions, summarydeletions, summary_files,
datetime(time_created/1000,unixepoch,localtime) as created
FROM session
ORDER BY time_updated DESC
LIMIT 20; | column -t -s |

4. 查看 schema

bash
sqlite3 -readonly $DB_PATH .schema session
sqlite3 -readonly $DB_PATH .schema message
sqlite3 -readonly $DB_PATH .schema part
sqlite3 -readonly $DB_PATH .schema project

完整字段与索引说明见 references/schema.md。

5. 查看所有表

bash
sqlite3 -readonly $DB_PATH .tables

6. 示例输出

id title directory updated
---------- ----------------------- -------------------------- -------------------
ses_abc123 My Session - 2026-03-24 /home/user/project 2026-03-24 10:00:00
ses_def456 Another Session /home/user/other 2026-03-23 15:30:00

（配合 | column -t -s | 对齐后的效果）

7. 注意事项

- 数据库使用 WAL 模式，会产生 .db-wal 和 .db-shm 文件
所有时间字段为毫秒级 Unix timestamp，用 datetime(ts/1000,unixepoch,localtime) 在 SQL 中直接转换
data 字段为 JSON：做结构化抽取时用 json_extract(data, $.field)，查看原始消息时优先 sql

opencode-session-readerOpenCode会话读取