यातव्येन वा संधायैनमतिसंदध्यात् ॥ कZ_०७.८.३३ ॥
yātavyena vā saṃdhāya enam atisaṃdadhyāt.
Or, having made an agreement with one with whom he must proceed (yātavya), he should then re-settle/renegotiate beyond it (i.e., conclude a further/overriding arrangement).
Do not treat the first pact as final—add clauses, renew, or supersede it when strategic conditions require tighter control or better terms.